Authors:

Men are much more unwilling to have their weaknesses and their imperfections known, than their crimes; and, if you hint to a man that you think him silly, ignorant, or even ill-bred or awkward, he will hate you more, and longer, than if you tell him plainly that you think him a rogue.

"Manners and speech or maxims extracted from Lord Chesterfield's letters to his son". Book by Lord Chesterfield, 1884.
Men are much more unwilling to have their weaknesses and their imperfections known, than their crimes; and, if you hint to a man that you think him silly, ignorant, or even ill-bred or awkward, he will hate you more,