To any who know the star field well from one certain reference point, stars are as individual as people. Jump ten parsecs, however, and not even your own sun is recognizable.

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.

Who am I?What is my mission?

I don't care about religion or who makes it. I only care about god's mind and how he uses it.

In danger there is great power.

The science of mathematics presents the most brilliant example of how pure reason may successfully enlarge its domain without the aid of experience

A day of peace and sharing can lead to greater understanding and cooperation among political parties, faith groups, and people of different races and economic class.

It was just at the end of the golden era of BBC comedy, which was fantastic.

I am alone; I am always alone no matter what.

[All governments] get into a rut where every potentially good story turns into a bad one.

We must be certain that the repair to the environment is sufficient to allow wild species to recover and survive.

I like my wine and vodka, but that doesn't mean I fall about drunk. I know my limits.