Time stays long enough for those who use it.

A scientist can pretend that his work isn't himself$$$ it's merely the impersonal truth. An artist can't hide behind the truth. He can't hide anywhere.

As a man's real power grows and his knowledge widens$$$ ever the way he can follow grows narrower: until at last he chooses nothing$$$ but does only and wholly what he must do...

Science fiction is not prescriptive; it is descriptive.

In war everybody is a prisoner.

I never knew anybody . . . who found life simple. I think a life or a time looks simple when you leave out the details.

I had forgotten how much light there is in the world$$$ till you gave it back to me.

What is an anarchist? One who$$$ choosing$$$ accepts the responsibility of choice.

Ignorance is bold$$$ and knowledge is reserved.

To learn which questions are unanswerable$$$ and not to answer them: this skill is most needful in times of stress and darkness.