Nicomachean Ethics

This then is my idea of the Great-minded man; and he who is in the defect is a Small-minded man, he who is in the excess a Vain man. However, as we observed in respect of the last character we discussed, these extremes are not thought to be vicious exactly, but only mistaken, for they do no harm.

The Small-minded man, for instance, being really worthy of good deprives himself of his deserts, and seems to have somewhat faulty from not having a sufficiently high estimate of his own desert, in fact from self-ignorance: because, but for this, he would have grasped after what he really is entitled to, and that is good. Still such characters are not thought to be foolish, but rather laggards. But the having such an opinion of themselves seems to have a deteriorating effect on the character: because in all cases men’s aims are regulated by their supposed desert, and thus these men, under a notion of their own want of desert, stand aloof from honourable actions and courses, and similarly from external goods.

But the Vain are foolish and self-ignorant, and that palpably: because they attempt honourable things, as though they were worthy, and then they are detected. They also set themselves off, by dress, and carriage, and such-like things, and desire that their good circumstances may be seen, and they talk of them under the notion of receiving honour thereby. Small-mindedness rather than Vanity is opposed to Great-mindedness, because it is more commonly met with and is worse.