To know everything is to know nothing, but to know nothing is to know everything.

Don't do unto others what you don't want others to do unto you.

By gaining the people, the kingdom is gained; by losing the people, the kingdom is lost.

Just as lavishness leads easily to presumption, so does frugality to meanness. But meanness is a far less serious fault than presumption.

I used to listen to what others said, and expect them to act accordingly. But nowadays, I listen to what they say, and then observe what they do.

When we see persons of worth, we should think of equaling them; when we see persons of a contrary character, we should turn inwards and examine ourselves.

A man living without conflicts, as if he never lives at all.