... you just can't differentiate between a robot and the very best of humans.

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.

She faces him, trying to take a breath that's long and level, trying to pull all the slopping emotions back inside so he won't see them in her face.

So curious you must be. Like little calves poking their heads through the fence with big eyes and a headful of curiosity.

I think as humans we do want to control our relationships, and you can't. It's probably better that you can't. That wouldn't be a real relationship, and we'd never learn and grow.

Fear is a belief - beliefs can be changed.

If I called her she would pretend not to hear, but would come a few moments later when it could appear that she had thought of doing so first.

I used to be an atheist until I realized that I was God.

I'm always following the characters and I'm always interested in what happens to them, but what happens to them is conditioned by the circumstances in which they live.

Designing a house is like doing a movie: Once you're done, you want to say, 'I hope you all enjoy it.'

Success and the art of making music are two different things for me.

It's really remarkable to see two candidates,[Donald] Trump and [Marco] Rubio, making things up and putting things out for which there is no evidence and no basis.