You sometimes have to answer to a woman according to her womanishness, just as you have to answer a fool according to his folly

Of the two lots, the woman's lot of perpetual motherhood, and the man's of perpetual babyhood, I prefer the man's

It is a woman's business to get married as soon as possible, and a man's to keep unmarried as long as possible

A man who is not a communist at the age of twenty is a fool. Any man who is still communist at the age of thirty is an even bigger one.

Build a system that even a fool can use, and only a fool will want to use.

Every person who has mastered a profession is a skeptic concerning it.