Over a very small number of rolls of the dice, the uncertainty principle is very important.

Time can behave like another direction in space under extreme conditions.

Intelligence is the ability to adapt to change.

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.

The thing about smart people is that they seem like crazy people to dumb people.

It is all right to make mistakes; nothing is perfect because with perfection, we would not exist.

I have noticed even people who claim everything is predestined, and that we can do nothing to change it, look before they cross the road.

People won't have time for you if you are always angry or complaining.

It is reasonable to ask who or what created the universe, but if the answer is God, then the question has merely been deflected to that of who created God.

It is very important for young people keep their sense of wonder and keep asking why.

The development of full artificial intelligence could spell the end of the human race.

If a machine can convincingly imitate humanity—can persuade a human being of its kinship—then what makes it inhuman? What, after all, is human thought but a series of electrical impulses?

The commonwealth is sick of their own choice

People always make choices, always take sides!

I'm annoyed by those who love mankind but are discourteous to people.

We must stand together if we don't there will be no victory for any one of us.

There's a difference between being politically incorrect and boorish. And we've seen that line crossed a dozen times by smart people who've mistaken politics for punditry.

The key to life is to set goals and go after those goals, don't hold anything back.

Kids are coming out earlier and earlier - some, as young as twelve now - and schools need to take that into account.

There are ways to minimize the risk if you are a woman working in the Middle East: You can dress modestly, wear the hijab, cover your head, always travel with a man.

My wife is a real Puritan. She thinks licking the stamp on the envelope of a Valentine is foreplay.