Be strict with yourself but least reproachful of others and complaint is kept afar.

Who heeds not the future will find sorrow at hand

The silent treasuring up of knowledge; learning without satiety; and instructing others without being wearied: which one of these things belongs to me?

Every journey starts with a single step.

To take what you know for what you know, and what you do not know for what you do not know, that is knowledge indeed.

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

Virtue is not left to stand alone. He who practices it will have neighbors.