There are no happy endings in history, only crisis points that pass.

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.

A woman's not a woman till the pills wear off.

Have hope. Though clouds environs now And gladness hides her face in scorn Put thou the shadow from thy brow- No night but hath its morn.

I've been at the funerals of a lot of people in my neighborhood. Sometimes when I sit back and relax, I think about that and just blank out.

I think I would have been a reasonably good lawyer. I have a faculty for making sense of mountains of information.

He who would pass his declining years with honor and comfort, should, when young, consider that he may one day become old, and remember when he is old, that he has once been young.

The thorns which I have reap'd are of the tree I planted; they have torn me, and I bleed. I should have known what fruit would spring from such a seed.

Only by art can we get outside ourselves, instead of seeing only one world, our own, we see it under multiple forms.

When my expectations are exactly fulfilled, I feel that something uncanny has happened.

We shoot double episodes in 15 days in Los Angeles.

The day I finished 'Twilight,' I came home and started bulking up. For 'New Moon,' I'm 30 pounds heavier than I was in 'Twilight.'