Jowett: concupiscent soul

And these two, thus nurtured and educated, and having learned truly to know their own functions, will rule over the concupiscent, which in each of us is the largest part of the soul and by nature most insatiable of gain ; over this they will keep guard, lest, waxing great and strong with the fulness of bodily pleasures, as they are termed, the concupiscent soul, no longer confined to her own sphere, should attempt to enslave and rule those who are not her natural-born subjects, and overturn the whole life of man ? THE REPUBLIC   BOOK IV