[Social] science fiction is that branch of literature which is concerned with the impact of scientific advance on human beings.

People who think they know everything are a great annoyance to those of us who do.

The saddest aspect of life right now is that science gathers knowledge faster than society gathers wisdom.

When stupidity is considered patriotism, it is unsafe to be intelligent.

So the universe is not quite as you thought it was. You'd better rearrange your beliefs, then. Because you certainly can't rearrange the universe.

In life, unlike chess, the game continues after checkmate.

People think of education as something that they can finish.

There are no nations! There is only humanity. And if we don't come to understand that right soon, there will be no nations, because there will be no humanity.

A robot may not injure a human being, or, through inaction, allow a human being to come to harm.

Violence is the last refuge of the incompetent.

A robot must protect its own existence as long as such protection does not conflict with the First or Second Laws.

Trust your soul.It alone knows what you are here to do in this lifetime and what will actually make you happy.

Any reflection about poetry should begin, or end, with this question: who and how many read poetry books?

I do not pick the wrong guys. They pick me.

Man actually needs the striving and struggling for some goal worthy of him.

Eccentricity, to be socially acceptable, had still to have at least four or five generations of inbreeding behind it.

That's the name of the game ... pleasing the customer. If we ever lose sight of that fact, we've lost the ball game.

We have been the benefactors of our cultural heritage and the victims of our cultural narrowness.

I feel like as you get older, the roles you get change, and you don't always want to do the same tone over and over again.

We make too much of winning. The mere fact of winning doesn't make you great.