Character, then, isn't what we think it is or, rather, what we want it to be. It isn't a stable, easily identifiable set of closely related traits, and it only seems that way because of a glitch in the way our brains are organized. Character is more like a bundle of habits and tendencies and interests, loosely bound together and dependent, at certain times, on circumstance and context.
Source: The Tipping Point: How Little Things Can Make a Big Difference, Pages: 163
Contributed by: ~C4Chaos