It takes more than capital to swing business. You've got to have the A. I. D. degree to get by - Advertising, Initiative, and Dynamics.

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.

The biological equipment of a man rigidly restricts the field in which he can serve.

We all remember epochs in our experience when some dear expectation dies, or some new motive is born.

Ricorda, se hai bisogno di una mano la troverai alla fine del tuo braccio. Remember, if you need a hand you'll find it at the end of your arm.

I didn't start skiing until I was 50. My wife Lois taught me how to ski. I'm proficiently conservative.

The press, or at least most of it, has lost the passion, the outrage, and the sense of mission that once drove reporters to defy authority and tell the truth.

We woman suffragists have a great mission - the greatest mission the world has ever known. It is to free half the human race, and through that freedom to save the rest.

A country without a border is like a person in a house without a front door. Anybody can enter and you cannot ask anybody to leave.

Compassion means full immersion in the condition of being human.

Go on and love yourself, cause everything's gonna be alright.

The experiences of life must be transformed into true comprehension.