i have the answer to a question that we've all asked. the question is, why is it that the letter x represents the unknown? now i know we learned that in math class, but now it's everywhere in the culture -- the x prize, the x-files, project x, tedx. where'd that come from?
about six years ago i decided that i would learn arabic, which turns out to be a supremely logical language. to write a word or a phrase or a sentence in arabic is like crafting an equation, because every part is extremely precise and carries a lot of information. that's one of the reasons so much of what we've come to think of as western science and mathematics and engineering was really worked out in the first few centuries of the common era by the persians and the arabs and the turks.
this includes the little system in arabic called al-jebra. and al-jebr roughly translates to “the system for reconciling disparate parts.“ al-jebr finally came into english as algebra. one example among many.
the arabic texts containing this mathematical wisdom finally made their way to europe -- which is to say spain -- in the 11th and 12th centuries. and when they arrived there was tremendous interest in translating this wisdom into a european language.
but there were problems. one problem is there are some sounds in arabic that just don't make it through a european voice box without lots of practice. trust me on that one. also, those very sounds tend not to be represented by the characters that are available in european languages.
here's one of the culprits. this is the letter sheen, and it makes the sound we think of as sh -- “sh.“ it's also the very first letter of the word shalan, which means “something“ just like the the english word “something“ -- some undefined, unknown thing.
now in arabic, we can make this definite by adding the definite article “al.“ so this is al-shalan -- the unknown thing. and this is a word that appears throughout early mathematics, such as this 10th century derivation of proofs.
the problem for the medieval spanish scholars who were tasked with translating this material is that the letter sheen and the word shalan can't be rendered into spanish because spanish doesn't have that sh, that “sh“ sound. so by convention, they created a rule in which they borrowed the ck sound, “ck“ sound, from the classical greek in the form of the letter kai.
later when this material was translated into a common european language, which is to say latin, they simply replaced the greek kai with the latin x. and once that happened, once this material was in latin, it formed the basis for mathematics textbooks for almost 600 years.
but now we have the answer to our question. why is it that x is the unknown? x is the unknown because you can't say “sh“ in spanish. (laughter) and i thought that was worth sharing.
(applause)
Accept the Gift from Life
Ladies and Gentlemen：
Today I’m glad that I’m standing here talking to you all. As the title given，I am going to talk you about a way of treating people and things in life. Myspeech here basically includes 2 parts， in the former of which I‘ll describe youthe present occasion we teenagers are in.， as well as the reason behind. Thenit’s about the several opinions of mine toward the case above.
Undoubtedly， every one of us has stepped into adolescence， a period of timewhere the most
exciting and mysterious changes take place. Boys， apparently become moreambitious. Girls， in some ways， start to dream and become more sensitive aboutthe world. All in all， as if our emotions become much stronger， somehow we’realways trapped in circles and struggling against something that can’t be changedanyway. We complain about how fragile our friendship is， how little people knowabout us， how unfair the life is，etc. It seems that every time we fail， we blameit to the tough conditions we’re in， while never notice a problem insideourselves， that we’re never satisfied.
Let’s just imagine that there was an old lady. What she sees was herneighbors’ being mean again while not how kind they were when they took care ofher sick body. What she saw was her dog’s annoying barking while not how muchloyalty it had shown.What she saw was always so depressing that it finallyturned her into an unpleasant person. Think about how our life would be if westand in her shoe.
Why don’t we focus our attention on how much we’ve already got in stead? Youknow it’s really simple to do as there’s a tremendous amount of examples. Likethe popular Jetpack Joy Ride on your Iphone， you can enjoy it whenever you like，whereas in some poor area people don’t even know such thing as Iphone.
Actually we should be thankful about the richness we’ve got， thankful thatwith each sunrise taking place we don’t need to starve to call it a day，thankful that the people we love are still in health， that we still got much tohold on. As a saying on website，” The world is tough， but I’m tougher.” Whatdoesn’t kill you makes you stronger.
Every day is a gift from life， all we need is to accept it， cherish thelessons life has taught us， so as to achieve our goal with high spirit. In thisway， someday when we leave the world， we leave no regrets.
Thank you for listening.
look! there is a rainbow! on the first day of my university life, when iwalked into the campus, there was a rainbow bridging over the fountain, i hadn’tseen rainbow for a long time. i was so excited, and leaped high with joy. myponytail danced with my happiness. it was a propitious sign indicated that mylife in university would be colorful, and actually it is!
after my entry into university, i found my life so busy. what i should dois not only gaining the scholarship but also being a good monitor and leader ofshanghai university percussion band. i got the 1st and 2nd price of scholarshipin my 2 years of study. i organized charity donations for schoolmates withfinancial difficulty or disease. every week, i give drum lesson to new membersof our percussion band. and there are always a lot of non-business performances,such as entertaining guests, celebrating party, cultural exchange with foreignstudents delegations and their bands. of course, part-time job is indispensablein my vacations. i ask for no payment but aim at getting accustomed to thesociety.
sometimes, my friends advise me not to tire myself out with such a tightschedule. i wake up before the rooster crow, and continue working till very latewhen others are enjoying their sweet dreams. every time i come back from therehearsal of percussion band, i have to finish my homework with the help of myown charged light because of the blackout in out dormitory. maybe such kind oflife is something like an ascetic, but we should work hard and try hard in ouryouth, aren’t we?
when i represented shanghai university to take part in the pond’s newcentury lady competition held in may, when i show off on the stage, when iemerged as “the girl of vitality”, i made use of every bit of time to compensatethe classes i had missed, i made use of every chance to learn from other girlswith vitality, versatility and intelligence, i made use of this opportunity topresent our university students’ state of mind.
there is a little bitterness in my busy life, but at the same time, thereis sweetness. it is colorful. i make fun out of it. i love it. when i snatch alittle leisure i lie on the green grass, reading books, i cripple myself in thewindow-seat in our library---the 2nd largest in shanghai---i absorb knowledgelike a hungry sponge, i wonder along the bank of river, listening to oriels inwillows and get a splendid sunset view of the campus. the sky is drunk with thesunset; i am drunk with the sweetness of my like.
ladies and gentlemen,
my name is zhang xinyu. today, im going to talk about growing pains. different people have different pains from different places. we are now students,so i think we have pains mainly from studies. time files.
two months ago, i came to a middle school student.but i have a pain.homework is my growing pain. in the secondary school, we have more subjects to study.and homework is more than primary school.so i could’t adapt to the secondary school’s homework. i don’t have other time to do any sports or read any books. however, i think all pains will fade away in the end. i believe that i can adapt the school life step by step. try my best. that’s all. thank you for your attention.
All over the world people listen to classical music.Classical music is difficult to describe.It means different things to different people.
Some famous classical composers were Bach,Vivaldi,Haydn and Mozart.In their music,they did not tell a story or show strong emotions.They wanted to make beautiful and interesting music with lovely sounds.
Then composers started to express ideas.They told stories about love and war.They also wrote about religion.Sometimes they composed music for holidays.Through their music composers showed strong emotions.Some of these composers were Beethoven,Schumann,Chopin,Mendelssohn,Wagner and Tchaikovsky.
Classical music has been popular for hundreds of years.Bach wrote about 300 years ago.Beethoven wrote about 200 years ago.And Tchaikovsky wrote over 100 years ago.
Sometimes people close their eyes while listening to classical music.It is difficult to understand sometimes.When they close their eyes they have to think about the music.
In our daily lives, we have many choices to make, such as what to eat forsupper,what clothes to wear, or what to do on weekends. at certain times in ourlives, we need to make even more critical choices, such as which school toattend, what job to take or who to choose as husband or wife. yes, life is amatter of choice. seemimgly, it means a choice of tangible things. but inessence, it means choosing a way of life. life is to be lived, savored, andenjoyed, not to be wasted or complained about.
Hardly can we forget the time when our society faced the grave threat fromthe life-and-death disease--sars. yet, even during those dreadful times, someafflicted people remained optimistic. instead of wearing neutral white masks,some people turned to colouful ones, and thus display a happy mood. and somecreative people dubbed sars to mean "smile and remain smiling." i was deeplytouched by their optimisim, nearly forgetting that we're still in a battle.people who survive these kinds of circumstances, (at some point)decide in theirminds to carry on in spite of the overwhelming odds.
Laid-off workers, typically regarded as the victims of economicadvancement, are subject to desperation that being unmeployed has brought onthem. but, encouragingly, we have witnessed some of them striving hard torebuild confidence toward life and discover new opportunities for demonstratingtheir values.
Although we cannot choose our appearance, inborn gifts and even avoidunexpected disasters and adversities, we do have the privilege to choose to liveoptimistcally,to love our lives, to have dreams, and to cherish hopes.
Every morning when we get up, we have a choice of how we want to approachlife that day. as for me, i choose to be cheerful.
Paul Bunyan was a hero in American folk tales. He was a lumberjack, livingin lumber camps ofthe American Northwest. He became famous for his greatstrength and great skill in cuttingtrees. According to legend, Paul Bunyan was agiant. He was so big that a small step he tookwas about three city blocks. Hecreated much of America. He dug Puget Sound in Washingtonto float huge logs tothe mill. He cleared trees from North and South Dakota and made the landin thosestates suitable for farming. He dragged his huge ax in the field of Colorado,and thuscreated the Grand Canyon. He also scooped out the Great Lakes to providedrinking water forhis giant blue ox, Babe. Babe weighed fifteen tons beforebreakfast and stood sixty feet tall.From the tip of one horn to the tip of theother, it measured 42 ax handles and a plug ofchewing tobacco. The ox atetremendous amounts of hay and potato peels and could haul awhole forest of logs.When Babe needed new shoes, the blacksmith had to open a new ironmine inMinnesota. The shoes were so heavy that the blacksmith sank knee-deep into solidrockwhile carrying them. Babe hadn’t always been blue. But nobody knew for surehow it had cometo be that colour. Some said it had turned blue from playingoutdoors too long during theWinter of the Blue Snow.
保罗·班扬是美国传说中的英雄。他是个伐木工，住在美国西北的伐木营地里。他由于力大无穷，伐木快如割草而威震四方。保罗是个巨人，他只须迈一小步就能跨过三条街。美国的大部分山山水水据说都是他创造的。他掘出了华盛顿州的皮尤吉特湾，好把木材从水路运到锯木场。他伐光了南北达科他所有的树木，将林地改做农田。他在科罗拉多的田野里拖了一下他的巨斧，结果划出了大峡谷。他的蓝牛贝贝口渴时，他就从五大湖里舀出水来给他喝。蓝牛贝贝高六十英尺，早饭前重十五吨。两角之间的长度为四十二斧柄外加一块嚼烟。贝贝饭量极大，须为他准备大量干草和土豆皮。但它的力气也极大，一次就能拉走一座森林的木材。贝贝需要钉掌时，铁匠就得在明尼苏达新开一座铁矿。那副牛蹄铁重得吓人，铁匠搬它们时，两腿陷在坚硬的岩石里，深达膝盖。蓝牛并非生下来就是蓝色的。它究竟是怎么变蓝的，谁也说不清。有人说这是因为下蓝雪那年冬天，贝贝贪玩儿，在外头待得太久了。
now i think at this point it's important for me to say that i actually love extroverts. i always like to say some of my best friends are extroverts, including my beloved husband. and we all fall at different points, of course, along the introvert/extrovert spectrum. even carl jung, the psychologist who first popularized these terms, said that there's no such thing as a pure introvert or a pure extrovert. he said that such a man would be in a lunatic asylum, if he existed at all. and some people fall smack in the middle of the introvert/extrovert spectrum, and we call these people ambiverts. and i often think that they have the best of all worlds. but many of us do recognize ourselves as one type or the other.
and what i'm saying is that culturally we need a much better balance. we need more of a yin and yang between these two types. this is especially important when it comes to creativity and to productivity, because when psychologists look at the lives of the most creative people, what they find are people who are very good at exchanging ideas and advancing ideas, but who also have a serious streak of introversion in them.
and this is because solitude is a crucial ingredient often to creativity. so darwin, he took long walks alone in the woods and emphatically turned down dinner party invitations. theodor geisel, better known as dr. seuss, he dreamed up many of his amazing creations in a lonely bell tower office that he had in the back of his house in la jolla, california. and he was actually afraid to meet the young children who read his books for fear that they were expecting him this kind of jolly santa claus-like figure and would be disappointed with his more reserved persona. steve wozniak invented the first apple computer sitting alone in his cubical in hewlett-packard where he was working at the time. and he says that he never would have become such an expert in the first place had he not been too introverted to leave the house when he was growing up.
now of course, this does not mean that we should all stop collaborating -- and case in point, is steve wozniak famously coming together with steve jobs to start apple computer -- but it does mean that solitude matters and that for some people it is the air that they breathe. and in fact, we have known for centuries about the transcendent power of solitude. it's only recently that we've strangely begun to forget it. if you look at most of the world's major religions, you will find seekers -- moses, jesus, buddha, muhammad -- seekers who are going off by themselves alone to the wilderness where they then have profound epiphanies and revelations that they then bring back to the rest of the community. so no wilderness, no revelations.
Good afternoon, dear teachers. I’m very glad to be here to have a speech. The topic of my speech is <the spirit of sports>.
As far as I’m concerned, I’m a sheer amateur of sports, being fascinated by swimming, running, mountaineering and so on. I couldn’t agree with these perspectives from people who dislike sports, because you’ll feel greatly relieved after being drenched in sweats by sports. Sports can also help you forget your worries and stress, feeling unprecedented relaxed.
As is known, a healthy body is extraordinarily crucial. Moreover physical exercise undeniably exerts a far-reaching influence on keeping ourselves fit. In taking part in out-door sports, we are closer to nature and can take in fresh air. The beauty of nature will keep us clear-headed, which is essential to our health. Besides sports can stimulate the circulation of blood and help to excrete the wastes in the body. It also can work up our appetite and activate or digestion. In a word, sports can give rise to a strong body for us.
In contemporary society, with the increasing focus on health, people in ever expanding numbers join the trend of doing sports and begin to accept more and more sorts of fashionable sports, ranging from hiking to diving. From this phenomenon, we can see not only do sports play a significant role in health, but also lay a solid foundation for human beings’ spirit.
Taking hiking for example, it’s a blend of man and nature completely way to travel, and also a kind of sports that not only need your physical strength, but also need the patience, perseverance and persistence. At the beginning of climbing a mountain, you’ll be exciting with the fantastic scene of mountain, river and water. However, after a half way, you’ll fell so tired and exhausted. The climbing road becomes more and more steep. At that time, it requires your persistence and determination to conquer arduous situations. It just likes the life, the closer the success is, the more difficulties you must endure.
From my aspects, the enchantment of sports is that it’s a challenge for the limit of your body --- both a sort of healthy and popular life style and an reflection of optimistic and positive attitude. Just like nowadays, the development of Olympic games is harmonious and prosperous, for the reason that it’s not only for shaping human’s body, but more for pursuing a king of spirit --- faster, higher, stronger.
This is my speech. Thank you.
My Attitude towards to Marks
For our students， marks is above everything. Teachers will judge us from ourmarks. With marks we can be enrolled into junior middle schools. With marks， wecan be enrolled into senior middle schools. With marks we can be enrolled intocollege. With marks we can be enrolled into postgraduate and doctrine studies.Still with marks we can be graded and be allowed to go abroad for furtherstudies. Our parents will be strict with us with the marks. Our society judge usfrom marks. However， sometimes we students compare one another with marksdirectly. We are completely controlled by marks. We like them and we feel sorryfor them. But what attitude towards our marks should we take?
Truly， marks functions cannot be underestimated. In terms of test in ourstudy， marks are fair and real. That is the reason why we say "Everyone is equalbefore marks. "
However， I think marks are the sole standard to judge the success or failureof students in exams. Sometimes， marks more than ten or less than one or two inour exams comparing with others mean not everything. The success or failure inexams will be influenced by experience on the spot and the examinee’s healthetc. Once in a while one cannot fail in exams. " Success or failure is commonsense for military. " I think everyone is familiar with the famous saying. Don’tyou think such will be the case with our study? In exams， one cannot be "never-defeated general" . Even though one will be very good in everyday study，he cannot succeed in every exam sometimes. We can get proof from the fact thatthe very best one we call "Number One Scholar" in the entrance exams for collegeand ordinary middle school and specialized secondary school over the years isnot eminent above all others nor top student in every study.
As a matter of fact， "high marks" and "ability" are not unified. Some timeago， a new phrase " high marks but poor competence" came into being. Once Ihappened to meet such a teacher as this .It is said that the teacher justgraduated from a far-famed key university. But his teaching result is much lessthan that of the one who just graduated from a not-well-renowned college. Whenlecturing， the teacher only repeated what the text-books says， which was verydull so the his students’ interest in learning was not aroused. His teaching wasshort of unity of teaching and learning. At present there is a fact that we knowa few brilliant and top college graduates are not qualified for their posts. Thereason for it may be lack of the ability to combine knowledge learnt from bookswith pragmatics in their work. Students of this kind will be successful in everyexam but they will be able to use freely their knowledge in their posts. Don’tyou think it waste training such persons for the country?
To sum up from the above， I can say marks are not absolutely authoritativefor some. If we neglect training and developing the students’ ability andcompetence and if we only seek for the high marks， we will be absolutely wrong.We should take an objective attitude towards the marks. Neither should weneglect them nor should we overvalue them like a God.
delicacies are tasty, but eating everyday can still make one lose appetite. happiness is what everyone longs for, but too much happiness can spoil people who may not care about the happiness they already have. it's universal to live in happiness without knowing it. the same is true with love. very few people can love the same person passionately all their lives. all love stories come to an end no matter how beautiful they are, which also demonstrate the changeability of love. what one has been chasing wildly may turn into something one wants to get rid of desperately in the end. besides, love is usually blind, especially those who fall in love at the first sight. at the very beginning, both try to demonstrate their beautiful side and cover up their weakness. fooled by the mysterious color of love, one often mistakes the weaknesses as merits. however, as time passes by, frequent contacts make one bored, and even merits become defects, and then the end of love is coming. what's more, there are the capricious men and women who never take love seriously, leaving the devoted ones suffering alone. the saying that the devoted is always abandoned by the heartless has almost become the truth of love affairs. what we can't neglect is that love may turn into hatred, and lovers may also become enemies. the best proof is the numerous divorces.
even though true love is hard to find nowadays, we still can see some true and infatuated boys and girls who readily give up their families, their parents, their studies, their careers and even their lives for love. they love so passionately, crazily and wildly that they hate anyone who is against their love, and may even harm or kill him if he insists on his objection.
DREAM——A word that has changed the world
Hello,everybody !it is my great honor to be here to share my idea with you .Today,I will talk something about DREAM——A word that has changed the world .
“What do you think is the word that has really changed our world ”
When I was asked about this question for the first time ,without thinking it too much ,a word flash into my mind ——DREAM ,D-R-E-A-M.People more or less dream about different things ,to be a teacher ,a doctor ,a scientist ,a businessman and so on .All these people who have dreams should be respected ,because Dreams make the world go around .We grow great by our dreams.All big men are great dreamers in their youth.Everyone has a dream ,and everything starts as one’s daydream.
Martin Luther king had a dream.He desired for a future where blacks and whites would coexist harmoniously as equals.By speaking the way he did,he educated,he inspired,he informed not just the people there,but people throughout America and unborn generations.He pushed forward the pace of American black society towards the racial equality .
Thomas Edison had a dream.He dreamed of a lamp that could be operated by electricity,began where he stood to put his dream into action,and despite more than ten thousand failures,he stood by that dream until he made it a physical reality!And today,his dream lights up the world at night.
Walt Disney had a dream.This,in itself,wasn't unusual -- he was always dreaming.He dreamed of making the first animated feature film,and of building an amusement park that parents could enjoy right along with their kids.Walt Disney empowered his dream and today,Disneyland,Disney world and Disney theme parks attract around the world thrill millions of visitors each and every year.
John F.kennedy had a dream.He wanted to land a man on the moon and return him safely to earth so as to restore faith in the American way of life.John F.kennedy empowered his dream and 8 years later Neil Armstrong stepped on the face of the moon.The moon landing certainly gave Americans new found confidence.
Dream --- A word that has changed the world Yes ,I would say so ,wouldn’t you
Youth is a special life relay station ,the growth with the worry ,the life feeling become aware happily with the dream ,collected a unique youth melody in here .
We decide.We choose.And as we decide and choose,so are our lives formed.In the end,forming our own destiny is what ambition is about.And most importantly ,You are the one you choose to be.
It is easy to waste our lives ,our days ,our minutes .It is easy to exist than living .So hold fast to your dreams,For if dreams die,life is a broken-winged bird,That cannot fly.Hold fast to your dreams,For when dreams go,life is a barren field,Frozen with snow.
I hope you everyone he
NO IMAGINATION, NO CREATIVITY
Dear teachers and students：
Good morning / afternoon / evening! My name is Liu zi yuan. The title of my speech is the relationship between creativity and imagination.
There is no creativity without imagination. With the development of the society, creativity becomes more and more important. People could not satisfy with ordinary life. So we need creativity to meet their requirements. We can see significance of the creativity from an example. The smart phone—iphone spread all over the world. That was the creativity of The Apple Inc. It is obvious that it will produce a bigger profit than common manufacturing. But, hao can we acquire creativity?
I think the creativity roots in imagination. Albert Einstein said that imagination is important than knowledge. Because we should creative a thing that is never appeared, we need to image. Use all the things and information around us to think and then go to achieve it. Without the imagination of the Wright brothers , human could not complete the flying dreams. Without the imagination of the Alexander Graham Bell, we could not hear the voice from a distance. If the creativity can make the human progress, imagination will be the road to success. Where the imagination come from? Knowledge ? Experience ? practice? I consider that all of them are indispensable. It is often said that knowledge is power. So we should empower ourselves with knowledge. After that we need to obtain experience form. practice. These are the basis, and we must strengthen them to extend our imagination.
As contemporary college students, we must shoulder the responsibility of the future of our motherland. What we need is not only the knowledge of the past, but also is the innovation of a new field. Our thought can not be bound by the old things. We should understand that an excellent nation is always full of creativity. So we must promote our imagination. There is no creativity without imagination. That’s all, thank you!
DREAM——A word that has changed the world
Hello,everybody !it is my great honor to be here to share my idea with you .Today,I will talk something about DREAM——A word that has changed the world .
“What do you think is the word that has really changed our world ”
When I was asked about this question for the first time ,without thinking it too much ,a word flash into my mind ——DREAM ,D-R-E-A-M.People more or less dream about different things ,to be a teacher ,a doctor ,a scientist ,a businessman and so on .All these people who have dreams should be respected ,because Dreams make the world go around .We grow great by our dreams.All big men are great dreamers in their youth.Everyone has a dream ,and everything starts as one’s daydream.
Martin Luther king had a dream.He desired for a future where blacks and whites would coexist harmoniously as equals.By speaking the way he did,he educated,he inspired,he informed not just the people there,but people throughout America and unborn generations.He pushed forward the pace of American black society towards the racial equality .
Thomas Edison had a dream.He dreamed of a lamp that could be operated by electricity,began where he stood to put his dream into action,and despite more than ten thousand failures,he stood by that dream until he made it a physical reality!And today,his dream lights up the world at night.
Walt Disney had a dream.This,in itself,wasn't unusual -- he was always dreaming.He dreamed of making the first animated feature film,and of building an amusement park that parents could enjoy right along with their kids.Walt Disney empowered his dream and today,Disneyland,Disney world and Disney theme parks attract around the world thrill millions of visitors each and every year.
John F.kennedy had a dream.He wanted to land a man on the moon and return him safely to earth so as to restore faith in the American way of life.John F.kennedy empowered his dream and 8 years later Neil Armstrong stepped on the face of the moon.The moon landing certainly gave Americans new found confidence.
Dream --- A word that has changed the world Yes ,I would say so ,wouldn’t you
Youth is a special life relay station ,the growth with the worry ,the life feeling become aware happily with the dream ,collected a unique youth melody in here .
We decide.We choose.And as we decide and choose,so are our lives formed.In the end,forming our own destiny is what ambition is about.And most importantly ,You are the one you choose to be.
It is easy to waste our lives ,our days ,our minutes .It is easy to exist than living .So hold fast to your dreams,For if dreams die,life is a broken-winged bird,That cannot fly.Hold fast to your dreams,For when dreams go,life is a barren field,Frozen with snow.
I hope you everyone he
梦--一个改变世界的词
大家好!我很荣幸能在这里和大家分享我的想法，今天我将谈论一个关于梦想的东西--一个改变世界的词。
“你认为什么是真正改变了我们世界的这个词呢”
当我被问到这个问题的时候，没有想太多，一个字闪进我的脑海——梦，d-r-e-a-m.people或多或少的梦想不同的东西，是一个教师，医生，科学家，商人等等。所有这些人的梦想都应该得到尊重，因为梦想让世界运转。我们增长我们的梦想伟大，所有的伟人都是在青年时期伟大的梦想家。每个人都有梦想，一切都开始作为一个的白日梦。
路德金做了一个梦，他希望给黑人和白人能和谐共处等。说他，他这样的教育，他深受启发，他通知不只是那里的人们，但全美国的人和未出生的后代，他推动了美国黑人社会的步伐走向种族平等。
爱迪生托马斯做了一个梦，他梦见一个能用电来供电的电灯，他开始在那里站着把自己的梦想付诸行动，尽管有一万多个失败，他站在那一个梦中，直到他成为现实!今天，他的梦想照亮了世界。
沃尔特迪士尼有一个梦想，这一点，在它本身并不寻常，他一直在做梦，他梦想制作第一部动画电影，并建设一个娱乐公园，父母可以享受与他们的孩子。
约翰肯尼迪做了一个梦，他想把人送上月球并返回他安全返回地球，恢复美国的生活方式的信念。约翰肯尼迪授权他的梦想，8年后尼尔阿姆斯壮踏上月球的脸。登月的确给了美国人的新发现的信心。
梦---一个改变世界的话是的，我会这样说，是不是你
青春是一个特殊的生命接力站，随着烦恼的成长，生活的感觉变得与梦的幸福感，在这里收集了一个独特的青春旋律。
我们决定，我们选择，并且当我们决定和选择，我们的生活也在我们的生活中，最终形成我们自己的命运是什么样的野心是什么，最重要的是，你是你选择的那个人。
我们的生活，我们的日子，我们的生活，很容易浪费我们的生命，很容易生存，所以坚持你的梦想，因为如果梦想死亡，生命是一只折断翅膀的鸟儿，不能飞翔。
我希望你们每个人都可以.
Good morning,everyone!.
From all the warm applause, i am of my classmates have hope. i will be with perseverance and tenacity to laugh last!
what is life? is patience, tenacity, perseverance is perseverance, perseverance is a kind of toward the goal diligently pursue the process, a destination never give up the spirit!
life is not easy, there are test; life is not smooth, often need to exercise. cannot persist in their pursuit for ideal, can't keep on carving to efforts, will be without a single success.
the development of training, in the face of10 meters of rock climbing and bungy jumping, all the students without fear, the courage to climb, especially some female students to overcome the physiological and psychological aspects of persistent limit, climb, bent upward; we are going forward, courageously try to be the first performance, and take concrete actions to interpret the essence and connotation of perseverance!
one persistent tenacity is strong from the need of necessary conditions. in the face of adversity is from, in the face of difficulties do not bow their heads, is a heroic performance. ancient cloud: adversity makes a man wise, what makes a hero. the setback and the attack for the strong is the driving force and pressure, is succeand victory! as everyone knows, he was arrested and his book; zhong ni and qu yuan banished for spring and autumn; ode to a left thalamic blindness, mandarin; sima qian; the" historical records" prison; beethoven wrote" moonlight sonata". be too numerous to enumerate examples, but the truth is only one, it is perseverance!
in his daily sailing kolumb diary is always written with such a sentence:" we keep going!" this sentence may seem trivial, but contains a profound truth. with this advance courageously spirit, they marched towards the vast sea, acrothe tempestuous waves, after savage wilderness, overcome go through untold hardships, finally found a new continent, completed the history of an amazing feat!
have one words of song, everyone for having heard it many times," no experience of wind and rain, how to see rainbow!" the road of life is not smooth, but carries a beautiful dream, just stick to the direction of life, they will be able to create their own or even human miracle!
finally, i would like to use a poem:ugly bat with thousands of years of hard work was to win the praise of the poet a buffalo with a million works won the painter's green eyes,we are not born for fame and live to die，we are for the faith and to fight song!
Thank you.