Some prolix young woman wants to know, "How do I stop being a know-it-all?" But this poor, foolish girl went looking for answers from Salon's cheese-and-nutball advice columnist Cary Tennis. A professional know-it-all!

Cary's answer: 462 words.
His Nut Graf (HA): "Be cool. Relax. Try to be wrong. Yep, just be wrong. Be wrong a lot — but silently! Be wrong but in the secret aura of your own thoughts! Allow yourself the luxury of extravagant error in the vast field of silence you have cleared for yourself!"
Summary: STFU.