Aphorism #240 Make use of Folly.
The wisest play this card at times, and there are times when the greatest wisdom lies in seeming not to be wise. You need not be unwise, but merely affect unwisdom. To be wise with fools and foolish with the wise were of little use. Speak to each in his own language. He is no fool who affects folly, but he is who suffers from it. Ingenuous folly rather than the pretended is the true foolishness, since cleverness has arrived at such a pitch. To be well liked one must dress in the skin of the simplest of animals.