Freeman Dyson

Image of Freeman Dyson
We cannot hope to either understand or to manage the carbon in the atmosphere unless we understand and manage the trees and the soil too.
- Freeman Dyson
Collection: Science
Image of Freeman Dyson
I belonged to a small minority of boys who were lacking in physical strength and athletic prowess. ... We found our refuge in science. ... We learned that science is a revenge of victims against oppressors, that science is a territory of freedom and friendship in the midst of tyranny and hatred.
- Freeman Dyson
Collection: Revenge
Image of Freeman Dyson
Most of what we see in the universe is dust.
- Freeman Dyson
Collection: Dust
Image of Freeman Dyson
As a working hypothesis to explain the riddle of our existence, I propose that our universe is the most interesting of all possible universes, and our fate as human beings is to make it so
- Freeman Dyson
Collection: Fate
Image of Freeman Dyson
I am acutely aware of the fact that the marriage between mathematics and physics, which was so enormously fruitful in past centuries, has recently ended in divorce.
- Freeman Dyson
Collection: Marriage
Image of Freeman Dyson
Sometimes we talked about the nature of the human soul and about the Cosmic Unity of souls that I had believed in so firmly when I was 15 years old. My mother did not like the phrase Cosmic Unity. It was too pretentious. She preferred to call it a world soul.
- Freeman Dyson
Collection: Mother
Image of Freeman Dyson
For some days I quietly worked out in my own mind the metaphysics of Cosmic Unity. The more I thought about it, the more convinced I became that it was the living truth. It was logically incontrovertible. It provided for the first time a firm foundation for ethics. It offered mankind the radical change of heart and mind that was our only hope of peace at a time of desperate danger. Only one small problem remained. I must find a way to convert the world to my way of thinking.
- Freeman Dyson
Collection: Heart
Image of Freeman Dyson
One factor that has remained constant through all the twists and turns of the history of physical science is the decisive importance of the mathematical imagination.
- Freeman Dyson
Collection: Education
Image of Freeman Dyson
Intelligence may indeed be a benign influence creating isolated groups of philosopher-kings far apart in the heavens... On the other hand, intelligence may be a cancer of purposeless technological exploitation, sweeping across a galaxy as irresistibly as it has swept across our own planet.
- Freeman Dyson
Collection: Kings
Image of Freeman Dyson
It is our task, both in science and in society at large, to prove the conventional wisdom wrong and to make our unpredictable dreams come true
- Freeman Dyson
Collection: Dream
Image of Freeman Dyson
Thanks to the discoveries of astronomers in the twentieth century, we now know that the heat death is a myth. The heat death can never happen, and there is no paradox.
- Freeman Dyson
Collection: Discovery
Image of Freeman Dyson
Now, as Mandelbrot points out, ... Nature has played a joke on the mathematicians. The 19th-century mathematicians may not have been lacking in imagination, but Nature was not. The same pathological structures that the mathematicians invented to break loose from 19th-century naturalism turn out to be inherent in familiar objects all around us.
- Freeman Dyson
Collection: Science
Image of Freeman Dyson
Science and religion are, of course, two different ways of looking at the universe; and it's the same universe with two different windows.
- Freeman Dyson
Collection: Two
Image of Freeman Dyson
The thing that makes me most optimistic is China and India - both of them doing well.
- Freeman Dyson
Collection: Optimistic
Image of Freeman Dyson
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: Years
Image of Freeman Dyson
People who travel in China tell me that the mood there is still very upbeat, because their media is different from our media. Chinese media emphasize how well things are going and suppress the bad news and publish the good news.
- Freeman Dyson
Collection: Media
Image of Freeman Dyson
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: Luck
Image of Freeman Dyson
The point of fact is, just in simple ways, you can see how much better things have gotten. I mean, when I was a child, I lived in England, and England was just amazingly polluted. We didn't use that word. We just said it was it all covered with soot.
- Freeman Dyson
Collection: Children
Image of Freeman Dyson
If you go to London now, not everything is beautiful, but it's amazingly better than it was. And the Thames is certainly a lot better: There are fish in the Thames.
- Freeman Dyson
Collection: Beautiful
Image of Freeman Dyson
I think we're doing pretty well. It's clear the media, of course, always gives you the bad news.
- Freeman Dyson
Collection: Thinking
Image of Freeman Dyson
Everything in my life was luck.
- Freeman Dyson
Collection: Luck
Image of Freeman Dyson
Some of my friends like to keep science and religion together, but I certainly like to keep them separate.
- Freeman Dyson
Collection: Together
Image of Freeman Dyson
I think science and religion should be separate.
- Freeman Dyson
Collection: Thinking
Image of Freeman Dyson
In religion, you're supposed to be somehow in touch with something deep and full of mysteries.
- Freeman Dyson
Collection: Mystery
Image of Freeman Dyson
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: Play
Image of Freeman Dyson
That's 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
Image of Freeman Dyson
The Besicovitch style is architectural. He builds out of simply elements a delicate and complicated architectural structure, usually with a hierarchical plan, and then, when the building is finished, the completed structure leads by simple arguments to an unexpected conclusion. Every Besicovitch proof is a work of art, as carefully constructed as a Bach fugue.
- Freeman Dyson
Collection: Beauty
Image of Freeman Dyson
The ground of science was littered with the corpses of dead unified theories.
- Freeman Dyson
Collection: Theory
Image of Freeman Dyson
It's us that's really amazing. 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
Image of Freeman Dyson
Life is nature's way to give mind oportunities it wouldn't otherwise had.
- Freeman Dyson
Collection: Life
Image of Freeman Dyson
We do not need to have an agreed set of goals before we do something ambitious!
- Freeman Dyson
Collection: Ambition
Image of Freeman Dyson
We do not know how much of the environmental change is due to human activities and how much [is due] to long-term natural processes over which we have no control.
- Freeman Dyson
Collection: Long
Image of Freeman Dyson
The essential fact which emerges ... is that the three smallest and most active reservoirs ( of carbon in the global carbon cycle), the atmosphere, the plants and the soil, are all of roughly the same size. This means that large human disturbance of any one of these reservoirs will have large effects on all three. We cannot hope either to understand or to manage the carbon in the atmosphere unless we understand and manage the trees and the soil too.
- Freeman Dyson
Collection: Mean
Image of Freeman Dyson
Computer models of the climate....[are] a very dubious business if you don't have good inputs.
- Freeman Dyson
Collection: Dubious
Image of Freeman Dyson
The only way to improve the chances for finding winners is to keep all the choices open and try them all.
- Freeman Dyson
Collection: Choices
Image of Freeman Dyson
The glory of science is to imagine more than we can prove.
- Freeman Dyson
Collection: Imagine
Image of Freeman Dyson
The average student emerges at the end of the Ph.D. program, already middle-aged, overspecialized, poorly prepared for the world outside, and almost unemployable except in a narrow area of specialization. Large numbers of students for whom the program is inappropriate are trapped in it, because the Ph.D. has become a union card required for entry into the scientific job market.
- Freeman Dyson
Collection: Jobs
Image of Freeman Dyson
The key to having an interesting life is to always say "yes" to anything crazy.
- Freeman Dyson
Collection: Crazy
Image of Freeman Dyson
Scientifically speaking, a butterfly is at least as mysterious as a superstring. When something ceases to be mysterious it ceases to be of absorbing interest to scientists. Almost all things scientists think and dream about are mysterious.
- Freeman Dyson
Collection: Dream
Image of Freeman Dyson
In desperation I asked Fermi whether he was not impressed by the agreement between our calculated numbers and his measured numbers. He replied, "How many arbitrary parameters did you use for your calculations?" I thought for a moment about our cut-off procedures and said, "Four." He said, "I remember my friend Johnny von Neumann used to say, with four parameters I can fit an elephant, and with five I can make him wiggle his trunk." With that, the conversation was over.
- Freeman Dyson
Collection: Cutting
Image of Freeman Dyson
For me, science is just a bunch of tools - it's like playing the violin.
- Freeman Dyson
Collection: Tools
Image of Freeman Dyson
Science is a human activity, and the best way to understand it is to understand the individual human beings who practise it. Science is an art form and not a philosophical method. The great advances in science usually result from new tools rather than from new doctrines. ... Every time we introduce a new tool, it always leads to new and unexpected discoveries, because Nature's imagination is richer than ours.
- Freeman Dyson
Collection: Nature
Image of Freeman Dyson
We should try to introduce our children to science today as a rebellion against poverty and ugliness and militarism and economic injustice.
- Freeman Dyson
Collection: Children
Image of Freeman Dyson
The universe in some sense must have known that we were coming.
- Freeman Dyson
Collection: Fine Tuning
Image of Freeman Dyson
The most revolutionary aspect of technology is its mobility. Anybody can learn it. It jumps easily over barriers of race and language. ... The new technology of microchips and computer software is learned much faster than the old technology of coal and iron. It took three generations of misery for the older industrial countries to master the technology of coal and iron. The new industrial countries of East Asia, South Korea, and Singapore and Taiwan, mastered the new technology and made the jump from poverty to wealth in a single generation.
- Freeman Dyson
Collection: Country
Image of Freeman Dyson
There are two different ways of looking at the universe; and it's the same universe with two different windows. 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: Giving
Image of Freeman Dyson
The brain, being analog, is able to grasp images so much better. The brain is just designed for comparing images and some patterns - patterns in space and patterns in time - which we do amazingly well. Computers can do it, too, but not in anything like the same kind of flexibility.
- Freeman Dyson
Collection: Space
Image of Freeman Dyson
I'm happy that I've raised six kids, and not one of them is a Ph.D.
- Freeman Dyson
Collection: Kids
Image of Freeman Dyson
The progress of science requires the growth of understanding in both directions, downward from the whole to the parts and upward from the parts to the whole. A reductionist philosophy, arbitrarily proclaiming that the growth of understanding must go only in one direction, makes no scientific sense. Indeed, dogmatic philosophical beliefs of any kind have no place in science.
- Freeman Dyson
Collection: Philosophy