When you drink the water, remember the spring.

Think of your own faults the first part of the night when you are awake, and of the faults of others the latter part of the night when you are asleep.

The palest ink is better than the best memory.

The winds of the heavens shift suddenly; so does human fate.

Use power to curb power.

Who is not satisfied with himself will grow; who is not sure of his own correctness will learn many things.

To be uncertain is to be uncomfortable, but to be certain is to be ridiculous.

To talk goodness is not good . . . only to do it is.

To open a business is very easy; to keep it open is very difficult.

What is told in the ear of a man is often heard a hundred miles away.

A truly great man never puts away the simplicity of a child.