I like being a "know-it-all" and I'm ok with the drawbacks.

   I read a book when i was 10-11 years old. It was one of those
   "how to be a man" books for boys or something. It was cute and
   cartoony and showed various bad habits one ought to break.

   For the know-it-all, it showed a drawing of a boy with his mouth
   open as he was talking, and flies were going in and out of it,
   and people were yawning.

   I recognized myself in the description and, after a brief
   discomfort / awkwardness / cognitive dissonance over it, I
   thought, "Well, I like me and find myself interesting. So if my
   audience doesn't, that just means I have the wrong audience,
   don't I?"

   Helped me ever since. The book was likely correct and I accepted
   its platitudes as "close enough to true". smile emoticon