[28]
Regard as your most faithful friends, not those who praise everything you say or do, but those who criticize your mistakes. Grant freedom of speech to those who have good judgement, in order that when you are in doubt you may have friends who will help you to decide. Distinguish between those who artfully flatter and those who loyally serve you, that the base may not fare better than the good. Listen to what men say about each other and try to discern at the same time the character of those who speak and of those about whom they speak.