Men are not potatoes!

The second best thing about space travel is that the distances involved make war very difficult, usually impractical, and almost always unnecessary. This is probably a loss for most people, since war is our race's most popular diversion, one which gives purpose and color to dull and stupid lives. But it is a great boon to the intelligent man who fights only when he must-never for sport.

It seems to me that the secret of true happiness in life is to know what you are and then be content to be that, in style, head up and proud, and not yearn to be something else.

Most 'scientists' are bottle washers and button sorters.

Women will forgive anything. Otherwise, the race would have died out long ago.

Luck is a tag given by the mediocre to account for the accomplishments of genius.

Anyone who cannot cope with mathematics is not fully human. At best, he is a tolerable subhuman who has learned to wear his shoes, bathe, and not make messes in the house.