Never fire a laser at a mirror.

Ethics change with technology.

SF isn't a genre; SF is the matrix in which genres are embedded, and because the SF field is never going in any one direction at any one time, there is hardly a way to cut it off.

The human species really could have faced global thermonuclear war. During seventy years of Cold War we grew used to it.

Everything starts as somebody's daydream.

In the world of words the imagination is one of the forces of nature.

In hindsight it may even seem inevitable that a socialist society will starve when it runs out of capitalists.

You learn by writing short stories. Keep writing short stories. The money's in novels, but writing short stories keeps your writing lean and pointed.

We learn only to ask more questions.

It's very difficult for a black man to get out of South-Central Los Angeles, and get out civilized....The only men I know who have escaped, all began reading Robert Heinlein at age ten.

One mark of a good officer, he remembered, was the ability to make quick decisions. If they happen to be right, so much the better.

The simple step of a courageous individual is not to take part in the lie. "One word of truth outweighs the world.

We live in wonder, blaze in a cycle of passion and apprehension.

I hope to encourage people to take flight on their mats, in their lives, and in their hearts.

Never underestimate those who you scar.

When politics enter into municipal government, nothing resulting therefrom in the way of crimes and infamies is then incredible. It actually enables one to accept and believe the impossible.

If you are ever going to achieve as much as you can in a sport, you are going to have to be willing to make a leap of faith to learn how much your body can handle.

I'm pretty much a realist. There's a certain age you get to when you're not really going to be shown anymore.

I was brought up to be a good boy and proud of myself so I suppress all the things about me that are bad.

I don't think I've aged gracefully.

To do justice to the figure of Kafka in its purity and its peculiar beauty one must never lose sight of one thing: it is the purity and beauty of a failure.