Chocolate was not simple.

[janestarz]

She looked at the next letter, but put it down again before opening it. Her mind had returned to the possible special issue on the ethics of food. There would have to be a paper on the moral issues raised by chocolate; the more she thought of it, the richer became the philosophical dimensions of chocolate. It brought akrasia, weakness of the will, into sharp focus. If we know that chocolate is bad for us (and in some respects chocolate is bad for us, in the sense that it makes us put on weight), then how is it that we end up eating too much of it? That suggests that our will is weak. But if we eat chocolate, then it must be that we think that it is in our best interests to do so; our will moves us to do what we know we will like. So our will is not weak - it is actually quite strong, and prompts us to do that which we really want to do (to eat chocolate). Chocolate was not simple.

From: Friends, Lovers, Chocolate by Alexander McCall Smith
Chapter 18, p. 219