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

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.

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

When I hear of Schrödinger's cat, I reach for my pistol.

The impossible often has a kind of integrity to it which the merely improbable lacks.

All things are possible until they are proved impossible and even the impossible may only be so, as of now.

There is perhaps nothing so bad and so dangerous in life as fear.

Like Indiana Jones, I don't like snakes - though that might lead some to ask why I'm in politics.

Passion and persistence are what matter. Dreams are achievable and you can make your fantasy come true, but there are no shortcuts. Nothing happens without hard work.

I am ... willing to make it clear that American foreign policy must uphold the sanctity of international treaties. That is the cornerstone on which all relations between nations must rest.

Any disaster is a learning process.

To begin with oneself but not to end with onself. To start from oneself but not to aim at oneself.

Theatre gives you wings as an actor.

The most important thing is a person. A person who incites your curiosity and feeds your curiosity; and machines cannot do that in the same way that people can.