You show me someone who can't understand people and I'll show you someone who has built up a false image of himself.

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.

Love is never any better than the lover. Wicked people love wickedly, violent people love violently, weak people love weakly, stupid people love stupidly, but the love a free man is never safe.

You are one brave woman, " he whispers, "I am in awe of you.

You can accept that things are awful and still have a sense of humor about it.

The moment you have protected an individual, you have protected society.

Stop the habit of wishful thinking and start the habit of thoughtful wishes.

But just one gram of suspicion weighs heavier than a kilo of truth!

I can't afford to step away from acting, but the one thing I've learnt after all these years is that I don't fit in. It's very difficult to be at the mercy of other people's whims and visions.

We lack resolve and blame fate, mistaking the drift for the tides.

We have to truly become a united people of the United States of America, and divisiveness cannot make that happen.

Let your former selves teach you, but never limit or define you