When stupidity is considered patriotism, it is unsafe to be intelligent.

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.

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.

While he lives, he must think; while he thinks, he must dream.

How do you stop those who will stop at nothing?

The more we explore, understand, and even come to appreciate our own self-destructive mental attitudes, the more control we gain over our minds.

She is drawn to the river, and all its hideous, dead-eyed treasures: rot-bloated cats, and cold-meat corpses of unwanted infants, eels plucking at their tender fingers and toes.

How nature loves the incomplete. She knows If she drew a conclusion it would finish her.

I have had my different husbands, my families. I am fond of them all and I visit them all. But deep inside me there is the feeling that I belong to show business.

Caine met Diana's disbelieving gaze and laughed aloud. "Why so gloomy? Doesn't every little girl want to grow up to be a queen?" "Princess," Diana said. "So, you got a promotion," Caine said.

There are plenty of difficult obstacles in your path. Don't allow yourself to become one of them.

It all must start with an inspired, spontaneous idea.

Success is nothing more than living your life according to your own truth and your own terms.

Fishing is taking a huge toll on the planet's ecosystem. We are emptying the oceans, seas, lakes, and rivers as we fish them dry.