Therefore a man must let his desire to hear make truce with his desire for repute, and listen cheerfully and affably as though he were a guest at some dinner or ceremonial banquet, commending the speaker’s ability in those parts wherein he achieves a success, and favourably accepting the goodwill, if nothing else, of the speaker who propounds his opinions and tries to persuade others by the reasons which have persuaded himself. Where he is successful we must reflect that the success is not due to chance or accident, but to care, diligence, and study, and herein we should try to imitate him in a spirit of admiration and emulation; but where there are mistakes, we should direct our intelligence to these, to determine the reasons and origin of the error. For as Xenophon Xenophon, Oeconomicus , i. 15. asserts that good householders derive benefit both from their friends and from their enemies, so in the same way do speakers, not only when they succeed, but also when they fail, render a service to hearers who are alert and attentive. For poverty of thought, emptiness of phrase, an offensive bearing, fluttering excitement combined with a vulgar delight at commendation, and the like, are more apparent to us in others when we are listening than in ourselves when we are speakers. Wherefore we ought to transfer our scrutiny from the speaker to ourselves, and examine whether we unconsciously commit such mistakes. For it is the easiest thing in the world to find fault with one’s neighbour, and also a useless and inane proceeding unless it be applied in some way to correcting or avoiding similar faults. And everyone ought to be ready ever to repeat to himself, as he observes the faults of others, the utterance of Plato, Cf. Plutarch, Moralia , 88 E, 129 D, and 463 E. Am I not possibly like them ? For as we see our own eyes brightly reflected in the eyes of those near us, so we must get a picture of our own discourses in the discourses of others, that we may not too rashly disdain others, and may give more careful attention to ourselves in the matter of speaking. To this end the process of comparison is useful, if, when we have come away from the lecture and are by ourselves, we take some topic that seems to have been ineffectually or inadequately treated, and try our hand at the same thing, and address ourselves to supplying a deficiency here, or amending there, to saying the same thing in other words, or attempting to treat the subject in a wholly new way; and this is what Plato Plato, Phaedrus , 237 B ff. actually did for the discourse of Lysias. For to offer objections against a discourse which has been delivered is not difficult, but very easy; but to set up a better against it is a very laborious task. As the Spartan Agesipolis; cf. Plutarch, Moralia , 215 B and 458 B. said, on hearing that Philip had razed the city of Olynthus to the ground, Yes, but even he could not possibly set up such another. Whenever, therefore, in discoursing thus upon a given subject, we find that we do not much excel those who have already spoken, we abate much of our disdain, and our presumption and self-esteem are very speedily cut short by being put to the test in such comparisons.