I will not be concerned at other men's not knowing me;I will be concerned at my own want of ability.

Unify your attention. Do not listen with your ears, but with your mind. Do not listen with your mind but with your essence.

A good man does not worry about not being known by others, but rather is concerned about not knowing them.

Looking at small advantages prevents great affairs from being accomplished.

There are three things against which the wise man guards: lust when young, quarrels when strong, and covetousness when old.

The cautious seldom err.

See a person's means ... Observe his motives. Examine that in which he rests. How can a person conceal his character?