Species evolve to meet the environment. An intelligent species changes the environment to suit itself. As soon as a species becomes intelligent, it should stop evolving.

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.

Pambana na Shetani kwa upanga wa imani ambao ni ukweli kwani ukweli ndiyo utakaokuweka huru.

Boundaries, and countries, if we don't have that we are all brothers and sisters, we can all have love and joy and compassion for each other: the world would be much more beautiful.

I'm a common woman sharing common problems seeking common solutions on a journey with an uncommon Savior.

There is a root arrogance in any writer; a hugely arrogant assumption that anyone is going to listen to them.

There's a standard formula for success in the entertainment medium, and that is: Beat it to death if it succeeds.

You don't have to be foreign policy expert to succeed as president, but you have to have ice water for blood.

A market is never saturated with a good product, but it is very quickly saturated with a bad one.

It's good news that he is proposing to restore budget cuts that he made, but the reality is that he is still proposing a 4.5 percent increase in tuition that's above inflation.

Blame unto others only as you would first blame yourself.

You don't create your mission in life - you detect it.