Disorder increases with time because we measure time in the direction in which disorder increases. - Stephen Hawking

Why are we so worried about artificial intelligence? Surely humans are always able to pull the plug? People asked a computer, ‘Is there a God?’ And the computer said, ‘There is now,’ and fused the plug.

Remember to look up at the stars and not down at your feet. Never give up work. Work gives you meaning and purpose and life is empty without it. If you are lucky enough to find love, remember it is there and don't throw it away.

I don't believe that the ultimate theory will come by steady work along existing lines. We need something new. We can't predict what that will be or when we will find it because if we knew that, we would have found it already! It could come in the next 20 years, but we might never find it.