If we can't program it, we can't understand it.

Quantum computation is a distinctively new way of harnessing nature. It will be the first technology that allows useful tasks to be performed in collaboration between parallel universes.

Feeling insignificant because the universe is large has exactly the same logic as feeling inadequate for not being a cow.

It is possible to build a virtual-reality generator whose repertoire includes every possible environment.

Our best theories are not only truer than common sense, they make more sense than common sense...

Every problem that is interesting is also soluble.

Base metals can be transmuted into gold by stars, and by intelligent beings who understand the processes that power stars, but by nothing else in the universe.

The whole [scientific] process resembles biological evolution. A problem is like an ecological niche, and a theory is like a gene or a species which is being tested for viability in that niche.

No precautions, and no precautionary principle, can avoid problems that we do not yet foresee. We need a stance of problem-fixing, not just problem-avoidance.

The overwhelming majority of theories are rejected because they contain bad explanations, not because they fail experimental tests.

Humans may or may not have cosmic significance, and if they do, it will be by hitching a ride on the objective centrality of knowledge in the cosmic scheme of things.

Failure should be archived in head, not heart.

Man is a tireless traveller wandering in the dark valleys of his past!

Large streams from little mountains flow tall oaks from little acorns grow.

Success is not a miracle. Nor is it a matter of luck. Everything happens for a reason, good or bad, positive or negative.

It's a civil war, and Arjuna knows a lot of people who are on the opposite side of the battlefield - they've been his friends.

In life, you can blame a lot of people and you can wallow in self-pity or you can pick yourself up and say listen, I have to be responsible for myself.

It's not fun facing a ball going 97 mph, trust me.

A sadder but wiser man is a thousand times more agreeable to meet than the feller that never makes a mistake.

With a play, you do it and it's gone. Films always date. Television drama always dates. Television comedy, for some reason, seems to go on.

In real time, the universe has a beginning and an end at singularities that form a boundary to space-time and at which the laws of science break down.