Samuel Johnson on wisdom

The true measure of a man is how he treats someone who can do him absolutely no good.

Sex: the expense is damnable, the position is ridiculous, and the pleasure fleeting.

A second marriage is the triumph of hope over experience.

The only true wisdom is in knowing you know nothing.

Socrates470–399 BC

By three methods we may learn wisdom: First, by reflection, which is noblest; Second, by imitation, which is easiest; and third by experience, which is the bitterest.

Confucius551–479 BC

True wisdom comes to each of us when we realize how little we
understand about life, ourselves, and the world around us.