who imitates another man's mode of speech, or is prepared to give praise whether it be deserved or not; we ought equally to blame one who humours himself and looks up to himself, and so to speak is his own flatterer. Vices are not only hateful when outwardly practised, but also when they are repressed within the mind. Whom would you admire more than he who governs himself and has himself under command? It is easier to rule savage nations, impatient of foreign control, than to restrain one's own mind and keep it under one's own control. Plato, it is argued, was grateful to Socrates for having been taught by him; why should not Socrates be grateful to himself for having taught himself? Marcus Cato said, "Borrow from yourself whatever you lack;" why, then, if I can lend myself anything, should I be unable to give myself anything? The instances in which usage divides us into two persons are innumerable; we are wont to say, "Let me converse with myself," and, "I will give myself a twitch of the ear;" [Footnote: See book iv. ch. xxxvi.] and if it be true that one can do so, then a man ought to be grateful to himself, just as he is angry with himself; as he blames himself, SO he ought to praise himself; since he can impoverish himself, he can also enrich himself. Injuries and benefits are the converse of one another: if we say of a man, 'he has done himself an injury,' we can also say 'he has bestowed upon himself a benefit?' VIII. It is natural that a man should first incur an obligation, and then that he should return gratitude for it; a debtor cannot exist without a creditor, any more than a husband without a wife, or a son without a father; someone must give in order that some one may receive. Just as no one carries himself, although he moves his body and transports it from place to place; as no one, though he may have made a speech in his own defence, is said to have stood by himself, or erects a statue to himself as his own patron; as no sick man, when by his own care he has regained his health, asks himself for a fee; so in no transaction, even when a man does what is useful to himself, need he return thanks to himself, because there is no one to whom he can return them. Though I grant that a man can bestow a benefit upon himself, yet at the same time that he gives it, he also receives it; though I grant that a man may receive a benefit from himself, yet he receives it at the same time that he gives it. The exchange takes place within doors, as they say, and the transfer is made at once, as though the debt were a fictitious one; for he who gives is not a different person to he who receives, but one and the same. The word "to owe" has no meaning except as between two persons; how then can it apply to one man who incurs an obligation, and by the same act frees himself from it? In a disk or a ball there is no top or bottom, no beginning or end, because the relation of the parts is changed when it moves, what was behind coming