16. I mean by charity that affection of the mind which aims at the enjoyment of God for His own sake, and the enjoyment of ones self and one's neighbour in subordination to God; by lust I mean that affection of the mind which aims at enjoying one's self and one's neighbour, and other corporeal things, without reference to God. Again, what lust, when unsubdued, does towards corrupting one's own soul and body, is called vice; but what it does to injure another is called crime. And these are the two classes into which all sins may be divided. But the vices come first; for when these have exhausted the soul, and reduced it to a kind of poverty, it easily slides into crimes, in order to remove hindrances to, or to find assistance in, its vices. In the same way, what charity does with a view to one's own advantage is prudence; but what it does with a view to a neighbor's advantage is called benevolence. And here prudence comes first; because no one can confer an advantage on another which he does not himself possess. Now in proportion as the dominion of lust is pulled down, in the same proportion is that of charity built up.