If I am right, then (religious fundamentalists) will not go to Heaven, because there is no Heaven. If they are right, then they will not go to Heaven, because they are hypocrites.

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.

When I wake up on a Monday morning and I realise I don't have to go and work at the civil service, I really think I've won.

We do not believe voters gave President Bush a mandate to turn back the clock decades on so many of our legal protections.

Every original idea is first ridiculed, then vigorously attacked, and finally taken for granted.

The most important advance in the next fifty years will be in the realm of the spiritual - dealing with the spirit of thought.

Like buried treasures, the outposts of the universe have beckoned to the adventurous from immemorial times...

If you own a rug you own too much.

THE GENIUS of the industrial system lies in its organized use of capital and technology. This is made possible, as we have duly seen, by extensively replacing the market with planning.

Hand fits giving, so do it, that's what the Gospel said to me. Life fits living, so let your judgments go.

Nobody will keep the thing he hears to himself, and nobody will repeat just what he hears and no more.

His friends he loved. His direst earthly foe - Cats-I believe he did but feign to hate. My hand will miss the insinuated nose, Mine eyes the tail that wagged contempt at Fate.