[16] But there are some persons who have made a treaty with the body to last till the day of their death, and who have buried themselves in it as in a chest or coffin or whatever else you like to call it, of whom all the parts which are devoted to the slavery of the body and of the passions are consigned to oblivion and buried. But if anything well affected towards virtue has shot up by the side of it, that is preserved in the recollection, by means of which good things are naturally destined to be kept alive.