Teaching causes people to go into situations from which they cannot escape, except by thinking. Do not handicap children by making their lives easy.

You were probably educated in the conventional economic theories of your period which were magnificent and most ingenious, but--if you will pardon my saying so--all wrong.

Love is that condition in which the happiness of another person is essential to your own... Jealousy is a disease, love is a healthy condition. The immature mind often mistakes one for the other, or assumes that the greater the love, the greater the jealousy.

Random chance was not a sufficient explanation of the Universe---in fact, random chance was not sufficient to explain random chance; the pot could not hold itself.

I don't see why human people make such a heavy trip out of sex. It isn't anything complex, it is simply the best thing in life, even better than food.

Spacemen die if they stay in one place.

A competent and self-confident person is incapable of jealousy in anything. Jealousy is invariably a symptom of neurotic insecurity.