We spend a great deal of time studying history, which, let’s face it, is mostly the history of stupidity. So

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associates and collaborators were Roger Penrose

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We don't let animals suffer, so why humans?

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The wise never marry, and when they marry they become otherwise.

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contains on average some one hundred billion stars. If a star were a grain of salt, you could fit all the stars visible to the naked eye on a teaspoon, but all the stars in the universe would fill a ball more than eight miles wide.

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Unfortunately, however, these two theories are known to be inconsistent with each other—they cannot both be correct.

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Although I cannot move, and I have to speak through a computer, in my mind, I am free.

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So remember to look up at the stars and not down at your feet. Try to make sense of what you see and hold on to that childlike wonder about what makes the universe exist.

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Estoy convencido de que los humanos necesitamos dejar la Tierra para evitar correr el riesgo de ser aniquilados.

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What I meant by 'we would know the mind of God' is, we would know everything that God would know, if there were a God. Which there isn't. I'm an atheist.

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