What is really amazing, and frustrating, is mankind's habit of refusing to see the obvious and inevitable until it is there, and then muttering about unforeseen catastrophes.

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.

Profit should never come at the cost of human blood. Any government that places profit before people is pure evil.

I...think it much more supportable to be always alone, than never to be so.

What journalism is really about-it's to monitor power and the centres of power.

A vigorous temper is not altogether an evil. Men who are easy as an old shoe are generally of little worth.

The fruit of liberal education is not learning, but the capacity and desire to learn, not knowledge, but power.

Captive Greece took captive her savage conqueror.

We need God, not in order to understand the why, but in order to feel and sustain the ultimate wherefore, to give a meaning to the universe.

Renewable ethanol represents a clear opportunity to grow a significant portion of our own fuel locally and begin to break the hold imported fuels have on us.

You cannot learn to curse like an American.

There's a thing, in general, about doing any kind of series, especially when the characters remain the same, to go back and try to improve whatever you did in the last movie, which never happens.