You succumb to the precedent you set.

When you see a good man, try to emulate his example, and when you see a bad man, search yourself for his faults.

A man has to learn that he cannot command things, but that he can command himself; that he cannot coerce the wills of others, but that he can mold and master his own will: and things serve him who serves Truth; people seek guidance of him who is master of himself.