It is the chief characteristic of the religion of science that it works.

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.

What God says about you is what matters, than what others may think of you.

Exigencies create the necessary ability to meet and conquer them.

There is no "slippery slope" toward loss of liberty, only a long staircase where each step down must first be tolerated by the American people and their leaders.

Until you have loved an animal, part of your soul will have remained dormant.

I am now eased in my finances and replenished in my wardrobe.

When I was growing up, I never heard anyone pray, "Give me this day my daily bread." It was always, "Give us this day our daily bread." That stuck. We're all in this together.

I tend to like to move on. I don't sit around and dwell on things much.

It's your life, live it your way.

There is almost no such thing as ready. There is only now.

You don't give people dignity. You affirm it.