Progress is made by lazy men looking for easier ways to do things.

I think that science fiction has a distinct therapeutic value because all of it has as its primary postulate that the world does change. I cannot overemphasize the importance of that idea.

Women and cats will do as they please, and men and dogs should relax and get used to the idea.

A dying culture invariably exhibits personal rudeness. Bad manners. Lack of consideration for others in minor matters. A loss of politeness, of gentle manners, is more significant than is a riot.

Sense is never common.

The less respect an older person deserves the more certain he is to demand it from anyone younger.

Don't ever become a pessimist... a pessimist is correct oftener than an optimist, but an optimist has more fun, and neither can stop the march of events.