Stephen Hawking

If aliens ever visit us, I think the outcome would be much as when Christopher Columbus first landed in America, which didn’t turn out very well for the native Americans.

Stephen Hawking

If everything in the universe depends upon everything else in a fundamental way, it might be impossible to get close to a full solution by investigating parts of the problem in isolation.

Stephen Hawking

If human life were long enough to find the ultimate theory, everything would have been solved by previous generations. Nothing would be left to be discovered.

Stephen Hawking

If I had a time machine, I’d visit Marilyn Monroe in her prime or drop in on Galileo as he turned his telescope to the heavens.

Stephen Hawking

If I had to choose a superhero to be, I would pick Superman. He’s everything that I’m not.

Stephen Hawking

If I have questions about the universe on my mind when I go to bed, I can’t turn off. I dream equations all night.

Stephen Hawking

If I knew what was going to happen in ten years I would do it now. I just follow my nose.

Stephen Hawking

If one is physically disabled, one cannot afford to be ‘psychologically’ disabled as well.

Stephen Hawking

If the government is covering up knowledge of aliens, they are doing a better job of it than they do at anything else.

Stephen Hawking

If we do discover a complete theory, it should be in time understandable in broad principle by everyone. Then we shall all, philosophers, scientists, and just ordinary people be able to take part in the discussion of why we and the universe exist.

Stephen Hawking