Joseph Conrad on wisdom

Who knows what true loneliness is — not the conventional word, but the naked terror? To the lonely themselves it wears a mask. The most miserable outcast hugs some memory or some illusion.

The belief in a supernatural source of evil is not necessary; men alone are quite capable of every wickedness.

Woe to the man whose heart has not learned while young to hope, to love — and to put its trust in life!!

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.