It is no good getting furious if you get stuck. What I do is keep thinking about the problem but work on something else. Sometimes it is years before I see the way forward. In the case of information loss and black holes, it was 29 years.

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How difficult life may seem, while there’s life, there is hope.

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When something is made idiot proof, they will just make better idiots.

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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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You can’t get to a time before the Big Bang because there was no time before the Big Bang. We have finally found something that doesn’t have a cause, because there was no time for a cause to exist in.

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The huge questions of existence still remain unanswered—how did life begin on Earth? What is consciousness? Is there anyone out there or are we alone in the universe? These are questions for the next generation to work on.

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I used to think information was destroyed in black hole. This was my biggest blunder, or at least my biggest blunder in science.

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The idea that we are alone in the universe seems to me completely implausible and arrogant, considering the number of planets and stars that we know exist, it's extremely unlikely that we are the only form of evolved life.

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Nothing is better than reading and gaining more and more knowledge.

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Whether you want to uncover the secrets of the universe, or you just want to pursue a career in the 21st century, basic computer programming is an essential skill to learn.

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