He will not, then, be moved by an insult from any man for though all men differ one from another, yet the wise man regards them all as alike on account of their equal folly; for should he once lower himself to the point of being affected by either injury or insult, he could never feel safe afterwards, and safety is the especial advantage of the wise man, and he will not be guilty of showing respect to the man who has done him an injury by admitting that he has received one, because it necessarily follows that he who is disquieted at any one's scorn would value that person's admiration.