When then you see a man pale, as the physician says, judging from the complexion, this man’s spleen is disordered, that man’s liver; so also say, this man’s desire and aversion are disordered, he is not in the right way, he is in a fever. For nothing else changes the colour, or causes trembling or chattering of the teeth, or causes a man to Sink in his knees and shift from foot to foot. — Iliad, xiii. 281.
