Someone who has thought rationally and deeply about how the body works is likely to arrive at better ideas about how to be healthy than someone who has followed a hunch. Medicine presupposes a hierarchy between the confusion the layperson will be in about what is wrong with him, and the more accurate knowledge available to doctors reasoning logically. … At the heart of Epicureanism is the thought that we are as bad at answering the question What will make me happy? as What will make me healthy? … Our souls do not spell out their troubles.
pp. 53-54. - The Consolations of Philosophy (2000)