There is no Master but the Master,” he said, “and QT-1 is his prophet.

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.

There are two distinct groups of people in the world: the ones who tell stories, and those who pay attention.

Success is the sole earthly judge of right and wrong.

What I most fear now is that within a century or so there may not be any human future at all.

You have to trust the words. They do not create anything more than themselves.

History uses a unit of measure for time that is different from that of the lifespan of the individual, whereas man is only too ready to measure the evolution of history by his own yardstick.

Truths and roses have thorns about them.

People of influence understand the incredible value of becoming a good listener.

Everything was good. But it was awful, too.

Whoever sees no other aim in the game than that of giving checkmate to one's opponent will never become a good Chess player

[To the editor of the Harlan, Kentucky, Daily Enterprise, as a kindergartener:] I know everything that goes on in this town, and if you give me a job so will you.