If a man is as wise as a serpent, he can afford to be as harmless as a dove.

Yet you must not cling to the words of the old sages either; they, too, may not be right. Even if you believe them, you should be alert so that, in the event that something superior comes along, you may follow that.

Even a sheet of paper has two sides.

To talk about other people's affairs is a great mistake. To praise them, too, is unfttting. In any event, it is best to know your own ability well, to put forth effort in your endeavors, and to be discreet in speech.

Feeling deeply the difference between oneself and others, bearing ill will and falling out with people — these things come from a heart that lacks compassion. If one wraps up everything with a heart of compassion, there will be no coming into conflict with people.

Working and working at it, iron can be pulverized.