Purging Quotes
The exchange of one fear or pleasure or pain for another fear or pleasure or pain, which are measured like coins, the greater with the less, is not the exchange of virtue. O, my dear Simmias, is there not one true coin, for which all things ought to exchange?-and that is wisdom; and only in exchange for this, and in company with this, is anything truly bought or sold, whether courage or temperance or justice. ...in the true exchange, there is a purging away of all these things, and temperance, and justice, and courage, and wisdom herself are a purgation of them.
Socrates
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. And of wine he said that it was a clean drink because it is yielded to men by so well-domesticated a plant as the vine; but he declared that it endangered the mental balance and system and darkened, as with mud, the ether which is in the soul. 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.
Philostratus