Nothing has to be true, but everything has to sound true.

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.

I' ve won awards. And they didn't make me feel bad winning them. They made me feel pretty good. But it also did not make me feel bad NOT winning the Academy Award.

I will never get tired of making chocolate chip cookies. Never.

In liberal societies we don't typically require citizens to rearrange their activities, their lives, the way they go about their business, to make it easy for the police to do their work.

Life's too short to be sat at home writing all the time.

Poets and novelists and playwrights make themselves, against terrible resistances, give over what the rest of us keep safely locked within our hearts.

I will die like a true-blue rebel. Don't waste any time in mourning - organize.

He who gives while he lives, gets to know where it goes.

For the ordinary man, whose mind is a checkerboard of criss-crossing reflections, opinions, and prejudices, bare attention is virtually impossible.

The thing I miss about performing is being with people.

I always wanted to be an actor. I was one of those lucky kids - or cursed kids - who always knew what he wanted to do.