[diminoten]

At what point is a personality merely a symptom? If everything about us is a result of our ailments, and all of our ailments have treatments, how does a person know which parts of his personality are him and which aren't? What am "I" then?

[chunky1994]

I would probably say that we can classify our personality as the difference in sets of what anyone with our ability and in the same situation would do, and what we do.

That being said, our ailments could probably be categorized by affecting all aspects of our life equally and in full measure of time (i.e something that doesn't fluctuate across the years is probably an untreated ailment).

[eli_gottlieb]

You're the little sane bit sitting on top herding the various cats of brain lobes, psychological disorders and just plain basic insanity into acting as a useful whole every day.

A sufficiently self-managing nutter is indistinguishable from a genius.

[mikeash]

That's an excellent question to which I am fairly convinced there is no answer, but it's a good one to think about in any case.