It pays to be obvious, especially if you have a reputation for subtlety.

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.

Of all the skills necessary for her work, what she was perhaps worst at was being polite to inanimate things.

I should have been conceived during Woodstock

Unhappiest is the person who feels happy when seeing an unhappy person!

Here is a good message from the ocean: You will be an ocean too if you let every river, every rain, every flood and every stream flow to you freely!

Baseball in the Navy always was much more fun than it had been in the major leagues.

It is better to be passionate than to be tolerant at the expense of one's soul.

Is there some truth out there? Yes. Is there a lot of falsehood out there? Absolutely.

Softness of smile indicates softness of character.

I have to convince myself that this is not a pointless life, even the body is telling me so.

Every book teaches me something about my process, and they are all challenging in one way or another.