a principle of all schools of philosophy; but to be intent only on that which thou art now doing and on the instrument by which thou doest it.
When thou art offended with any man’s shameless conduct, immediately ask thyself, Is it possible, then, that shameless men should not be in the world? It is not possible. Do not, then, require what is impossible. For this man also is one of those shameless men who must of necessity be in the world. Let the same considerations be present to thy mind in the case of the knave, and the faithless man, and of every man who does wrong in any way. For at the same time that thou dost remind thyself that it is impossible that such kind of men should not exist, thou wilt become more kindly disposed towards every one individually.
It is useful to perceive this, too, immediately when the occasion arises, what virtue nature has given to man to oppose to every wrongful act. For she has given to man, as an antidote against the stupid man, mildness, and against another kind of man some other power. And in all cases it is possible for thee to correct by teaching the man who is gone astray; for every man who errs misses his object and is gone astray.