The real question is whether all your pondering and analyses will convince you that life is worth living. That’s what it all comes down to.
BRIAN GREENEYou should never be surprised by or feel the need to explain why any physical system is in a high entropy state.
More Brian Greene Quotes
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And putting together the probabilities of quantum mechanics with the certainty of general relativity, that’s been the big challenge and that’s why we have been excited about string theory, as it’s one of the only approaches that can put it together.
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I like to think that Einstein would look at string theory’s journey and smile, enjoying the theory’s remarkable geometrical features while feeling kinship with fellow travelers on the long and winding road toward unification.
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Sometimes attaining the deepest familiarity with a question is our best substitute for actually having the answer.
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Energy is the ultimate convertable currency.
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There’s no way that scientists can ever rule out religion, or even have anything significant to say about the abstract idea of a divine creator.
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Relativity challenges your basic intuitions that you’ve built up from everyday experience. It says your experience of time is not what you think it is, that time is malleable. Your experience of space is not what you think it is; it can stretch and shrink.
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That is, you can have nothingness, absolute nothingness for maybe a tiny fraction of a second, if a second can be defined in that arena, but then it falls apart into a something and an anti-something. And that something is then what we call the universe.
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The beauty of string theory is the metaphor kind of really comes very close to the reality.
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Science is the greatest of all adventure stories, one that’s been unfolding for thousands of years as we have sought to understand ourselves and our surroundings.
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I was holding [my four-year-old daughter] and I said, ‘Sophia, I love you more than anything in the universe.’ And she turned to me and said, ‘Daddy, universe or multiverse?’
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Falsifiability for a theory is great, but a theory can still be respectable even if it is not falsifiable, as long as it is verifiable.
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The idea that there could be other universes out there is really one that stretches the mind in a great way.
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A watch worn by a particle of light would not tick at all. Light realizes the dreams of Ponce de Leon and the cosmetics industry: it doesn’t age.
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It’s hard to teach passionately about something that you don’t have a passion for.
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To tell you the truth, I’ve never met anybody who can envision more than three dimensions. There are some who claim they can, and maybe they can; it’s hard to say.
BRIAN GREENE






