Humanity is cutting down its forests, apparently oblivious to the fact that we may not be able to live without them.

But life is glorious when it is happy; days are carefree when they are happy; the interplay of thought and imagination is far and superior to that of muscle and sinew. Let me tell you, if you don't know it from your own experience, that reading a good book, losing yourself in the interest of words and thoughts, is for some people (me, for instance) an incredible intensity of happiness.

Oh, for a pin that would puncture pretension!

There is no right to deny freedom to any object with a mind advanced enough to grasp the concept and desire the state. -(from "The Bicentennial Man) story)

A scientist is as weak and human as any man, but the pursuit of science may ennoble him even against his will.

I type 90 words per minute on the typewriter; I type 100 words per minute on the word processor. But, of course, I don't keep that up indefinitely - every once in a while I do have to think a few seconds.

An atom-blaster is a good weapon, but it can point both ways.