"Now Euxenus realized that he was attached to a lofty ideal, and asked him at what point he would begin it. Apollonius answered: "At the point at which physicians begin, for they, by purging the bowels of their patients prevent some from being ill at all, and heal others." And having said this he declined to live upon a flesh diet, on the ground that it was unclean, and also that it made the mind gross; so he partook only of dried fruits and vegetables, for he said that all the fruits of the earth are clean. ... After then having thus purged his interior, he took to walking without shoes by way of adornment and clad himself in linen raiment, declining to wear any animal product."