5 You bathe daily; another regards such over-niceness as defilement. You surfeit yourself on wild fowl and pride yourself on eating sturgeon; I, on the contrary, fill my belly with beans. You find pleasure in troops of laughing girls; I prefer Paula and Melanium who weep. You covet what belongs to others; they disdain what is their own. You like wines flavored with honey; they drink cold water, more delicious still. You count as lost what you cannot have, eat up, and devour on the moment; they believe in the Scriptures, and look for good things to come. And if they are wrong, and if the resurrection of the body on which they rely is a foolish delusion, what does it matter to you? We, on our side, look with disfavor on such a life as yours. You can fatten yourself on your good things as much as you please; I for my part prefer paleness and emaciation. You suppose that men like me are unhappy; we regard you as more unhappy still. Thus we reciprocate each other's thoughts, and appear to each other mutually insane.
Source: Letters (New Advent)