To succeed, planning alone is insufficient. One must improvise as well.

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.

Time rises and rises, and when it reaches the level of your eyes you drown.

I can't draw. I'm good on the yo-yo, but I don't draw.

It is a common happening that those in power, as their tenure of office continues, find themselves less and less able to contemplate relinquishing it.

Come here often?' I asked instead, humoring no one but myself. So it was totally worth it.

I remember my boyfriend and I had just broken up, and I was like 'I don't care how much it costs, I'm getting my hair bleached!' That's really when everything changed.

Elites play the role today that landlords played under feudalism. They levy interest and financial fees that are like a tax, to support what the classical economists called "unproductive activity."

Better a holy discord than a profane concord.

The truth is that everyone pays attention to who's number one at the box office. And none of it matters, because the only thing that really exists is the connection the audience has with a movie.

New York is my favorite city.

The history of every country begins in the heart of a man or a woman.