"You're very smart. Smarter than I am, I hope. Though of course I have such incredible vanity that I can't really believe that anyone is actually smarter than I am. Which means that I'm all the more in need of good advice, since I can't actually conceive of needing any."
That's a modest thing to say for a vain person. It even sounds a bit like Moore's paradox - I need advice, but I don't believe I do.
(Not that I'm surprised. I've met ambivalent people like that and could probably count myself among them. Being aware that you habitually make a mistake is one thing, not making it any more is another. Or, if you have the discipline and motivation, one step and the next.)
Here's the new thread for posting quotes, with the usual rules: