It may be doubtful, at first, whether a person is an enemy or friend. Meat, if not properly digested, becomes poison; But poison, if used rightly, may turn medicinal.
Much talking is the cause of danger. Silence is the means of avoiding misfortune. The talkative parrot is shut up in a cage. Other birds, without speech, fly freely about.
Not to be cheered by praise, not to be grieved by blame, but to know thoroughly ones own virtues or powers are the characteristics of an excellent man.