Being confined to a wheelchair doesn't bother me as my mind is free to roam the universe, but it felt wonderful to be weightless.

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.

When the family is destroyed, society eventually disintegrates.

I have often wondered why the sounds of the beating drums do not make the marching soldiers shoot their officers and go home.

I dropped out of high school and I couldn't go to college 'cause I wasn't smart enough, so I'd resigned myself to loading trucks and playing punk rock on the weekends.

Wait until companies have an initial prototype, have shown that they have the potential to be profitable and have the ability to scale. That's the best time to invest.

My mother gave up a good part of her career to look after me.

I have an audience that goes from kids to seventy year olds.

A market that's as open as possible is the precondition for a successful economy, and a successful economy is the precondition to being able to pay for social security.

Few maxims are true in every respect.

It is the usual consolation of the envious, if they cannot maintain their superiority, to represent those by whom they are surpassed as inferior to some one else.

Everyone has this conjecture that action films are somewhat less prestigious than dramatic films. Nothing could be further from the truth. I've done them both and this is hard and dangerous.