Freeman Dyson

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As finite creatures who think and feel, we can create islands of meaning in the sea of information.
- Freeman Dyson
Collection: Thinking
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The science window gives you a view of the world, and the religion window gives you a totally different view. You can't look at both of them at the same time, but they're both true.
- Freeman Dyson
Collection: Views
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Plasma seems to have the kinds of properties one would like for life. It's somewhat like liquid water--unpredictable and thus able to behave in an enormously complex fashion. It could probably carry as much information as DNA does. It has at least the potential for organizing itself in interesting ways.
- Freeman Dyson
Collection: Fashion
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A model is such a fascinating toy that you fall in love with your creation.
- Freeman Dyson
Collection: Falling In Love
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That's what I learned from World War II. Things are always more complicated than most people believe.
- Freeman Dyson
Collection: War
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Keynes was chief economic adviser to the British government and largely responsible for keeping the British economy afloat at a time when more than half of our gross national product, and all of our foreign exchange, was being spent on the war. I was lucky to be present at one of his rare appearances in Cambridge, when he gave a lecture with the title "Newton, the Man." Four years later he died of heart failure, precipitated by overwork and the hardships of crossing the Atlantic repeatedly in slow propeller-driven airplanes under wartime conditions.
- Freeman Dyson
Collection: War
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If we had a reliable way to label our toys good and bad, it would be easy to regulate technology wisely. But we can rarely see far enough ahead to know which road leads to damnation. Whoever concerns himself with big technology, either to push it forward or to stop it, is gambling in human lives.
- Freeman Dyson
Collection: Technology
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The total disorder in the universe, as measured by the quantity that physicists call entropy, increases steadily over time. Also, the total order in the universe, as measured by the complexity and permanence of organized structures, also increases steadily over time.
- Freeman Dyson
Collection: Order
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The technologies which have had the most profound effects on human life are usually simple. A good example of a simple technology with profound historical consequences is hay. ... It was hay that allowed populations to grow and civilizations to flourish among the forests of Northern Europe. Hay moved the greatness of Rome to Paris and London, and later to Berlin and Moscow and New York.
- Freeman Dyson
Collection: Horse
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I had the good luck a few years ago to visit the archeological site of Zippori in Israel ... I could see here displayed the Greek culture that Jesus decisively rejected, the same Greek culture that infiltrated the Christian religion soon after his death and has dominated Christianity ever since.
- Freeman Dyson
Collection: Christian
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Mathematics is really an art, not a science. You could say science also is an art. So I would say the difference is something you can't really describe - you can only recognize. You hear somebody playing the violin, and it was Fritz Kreisler or it was somebody else, and you can tell the difference. It is so in almost every art. We just don't understand why it is that there are just a few people who are just completely off the scale and the rest of them are just mediocre. And we don't know why. But I say it's certainly true of mathematics.
- Freeman Dyson
Collection: Art
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The world is just - it's wonderful when you look at all the detail. It's just amazing. Nothing is boring if you look at it carefully.
- Freeman Dyson
Collection: World
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Vegetation is really controlling what happens...whereas the emphasis in the climate models has always been on the atmosphere.
- Freeman Dyson
Collection: Atmosphere
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I think it's much better to have your eyes open, but on the other hand, of course it can do harm if you tell people look, there's all these terrible things you can do and then some idiot may go ahead and do it.
- Freeman Dyson
Collection: Eye
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There is no doubt that parts of the world are getting warmer, but the warming is not global.
- Freeman Dyson
Collection: Doubt
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It's us that's really amazing.
- Freeman Dyson
Collection: Really Amazing
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That's, of course, the beautiful thing about science - that it's all about things we don't understand, not just the things we do understand.
- Freeman Dyson
Collection: Beautiful
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You have this world of mathematics, which is very real and which contains all kinds of wonderful stuff. And then we also have the world of nature, which is real, too. And that, by some miracle, the language that nature speaks is the same language that we invented for mathematics. That's just an amazing piece of luck, which we don't understand.
- Freeman Dyson
Collection: Real
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You have this world of mathematics, which is very real and which contains all kinds of wonderful stuff. And then we also have the world of nature, which is real, too.
- Freeman Dyson
Collection: Real
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Mathematics is really an art, not a science.
- Freeman Dyson
Collection: Art
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The thing that makes me most optimistic is China and India - both of them doing well. It's amazing how much progress there's been in China, and also India. Those are the places that really matter - they're half of the world's population. They're the places where things are enormously better now than they were 50 years ago. And I don't see anything that's going to stop that.
- Freeman Dyson
Collection: Optimistic
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For me, science is just a bunch of tools - it's like playing the violin. I just enjoy calculating, and it's an instrument I know how to play. It's almost an athletic performance, in a way. I was just watching the Olympics, and that's how I feel when proving a theorem.
- Freeman Dyson
Collection: Athletic
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I'm prejudiced about education altogether. I think it's terribly overrated. It wastes a tremendous amount of time - especially for women, it's particularly badly timed. If they're doing a Ph.D., they have a conflict between raising a family or finishing the degree, which is just at the worst time - between the ages of 25 to 30 or whatever it is. It ruins the five years of their lives.
- Freeman Dyson
Collection: Thinking
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The world is just - it's wonderful when you look at all the detail. It's just amazing.
- Freeman Dyson
Collection: Details
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Of course, long-distance running has to do with the fact that we're hunters.
- Freeman Dyson
Collection: Running
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Of course, the English countryside is completely artificial. It was naturally a forest; they chopped down the trees and made it into what it is now: really a beautiful country.
- Freeman Dyson
Collection: Beautiful
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I think that the artificial-intelligence people are making a lot of noise recently, claiming that artificial intelligence is making huge progress and we're going to be outstripped by the machines.
- Freeman Dyson
Collection: Thinking
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We won't really understand the brain until we can make models of it which are analog rather than digital, which nobody seems to be trying very much.
- Freeman Dyson
Collection: Brain
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I think the biggest misconception is that everybody has to learn mathematics. That seems to be a complete mistake.
- Freeman Dyson
Collection: Mistake
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All the time worrying about pushing the children and getting them to be mathematically literate and all that stuff. It's terribly hard on the kids. It's also hard on the teachers. And I think it's totally useless.
- Freeman Dyson
Collection: Teacher
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As far as I can see, our concentration of different abilities in one species - there's nothing I can see that in this Darwinian evolution that could've done that. So it seems to be a miracle of some sort.
- Freeman Dyson
Collection: Miracle
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The Ph.D. system was designed for a job in academics. And it works really well if you really want to be an academic, and the system actually works quite well. So for people who have the gift and like to go spend their lives as scholars, it's fine. But the trouble is that it's become a kind of a meal ticket - you can't get a job if you don't have a Ph.D.
- Freeman Dyson
Collection: Jobs
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You could say science also is an art.
- Freeman Dyson
Collection: Art
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Dropping of the atomic bomb was the main subject of conversation for many years and so people had very strong feelings about it on both sides and people who thought it was the greatest thing they'd ever done and people who thought it was just an unpleasant job and people who thought they should have never done it at all, so there were opinions of all kinds.
- Freeman Dyson
Collection: Strong
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I mean science was blamed for all the horrors of World War I, just as it's blamed today for nuclear weapons and quite rightly.
- Freeman Dyson
Collection: War
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I don't know, but I think it's quite possible that the more science you teach kids in school the more it turns them off, so I don't know. I mean you never can tell which way it will go.
- Freeman Dyson
Collection: School
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Science was blamed for all the horrors of World War I, just as it's blamed today for nuclear weapons and quite rightly. I mean World War I was a horrible war and it was mostly the fault of science, so that was in a way a very bad time for science, but on the other hand we were winning all these Nobel Prizes.
- Freeman Dyson
Collection: War
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Theory said one thing and the experiment said something different, so that was the stimulus that started me going, that there was something there to be explained, which wasn't understood and to try to see why that experiment gave the answer it did, so it was a big opportunity for a young student starting to have actually an experiment which contradicted the theory, so that's was my chance to understand that.
- Freeman Dyson
Collection: Opportunity
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Well germ warfare of course exists. There have been on a small scale... There have been, of course, a few people who got killed with anthrax right here in Princeton.
- Freeman Dyson
Collection: People
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Some things go better than you expected, other things go worse, so I'm... I think the only sensible thing is just to wait and see and what I'm doing when I'm writing books - I'm not doing science so much anymore.
- Freeman Dyson
Collection: Book
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So long as you have courage and a sense of humor, it is never too late to start life afresh.
- Freeman Dyson
Collection: Life
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The average ground temperature of the Earth is impossible to measure since most of the Earth is ocean...So this average ground temperature is a fiction.
- Freeman Dyson
Collection: Ocean
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We must be careful not to discourage our twelve-year-olds by making them waste the best years of their lives preparing for examinations.
- Freeman Dyson
Collection: Education
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Ethical progress is the only cure for the damage done by scientific progress.
- Freeman Dyson
Collection: Progress
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Science and religion are two windows that people look through, trying to understand the big universe outside, trying to understand why we are here. The two windows give different views, but they look out at the same universe. Both views are one-sided, neither is complete. Both leave out essential features of the real world. And both are worthy of respect.
- Freeman Dyson
Collection: Real
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The idea that God may be approached and understood through intellectual analysis is uniquely Christian... It is probably not an accident that modern science grew explosively in Christian Europe and left the rest of the world behind.
- Freeman Dyson
Collection: Christian
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Most of the crackpot papers which are submitted to The Physical Review are rejected, not because it is impossible to understand them, but because it is possible. Those which are impossible to understand are usually published. When the great innovation appears, it will almost certainly be in a muddled, incomplete and confusing form. To the discoverer himself it will be only half-understood; to everybody else it will be a mystery. For any speculation which does not at first glance look crazy, there is no hope.
- Freeman Dyson
Collection: Crazy
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...the computer models are very good at solving equations of fluid dynamics but very bad at describing the real world. The real world is full of things like clouds and vegetation and soil and dust which the models describe very poorly.
- Freeman Dyson
Collection: Real
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Climate change is part of the normal order of things, and we know it was happening before humans came.
- Freeman Dyson
Collection: Order