A man learns to skate by staggering about making a fool of himself. Indeed he progressed in all things by making a fool of himself.

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.

A learned man is an idler who kills time by study.

Even the youngest of us may be wrong sometimes

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

Imitation is not just the sincerest form of flattery - it's the sincerest form of learning.