Thus, the amount of increase is proportional both to the thing increased, and the time during which it increases; in other words, usury grows like a cancer--_foenus serpit sicut cancer_.
2.

THE INCREASE PAID TO THE PROPRIETOR BY THE OCCUPANT IS A DEAD LOSS TO THE LATTER.

For if the proprietor owed, in exchange for the increase which he receives, some thing more than the permission which he grants, his right of property would not be perfect--he would not possess _jure optimo, jure perfecto;_ that is, he would not be in reality a proprietor.

Then, all which passes from the hands of the occupant into those of the proprietor in the name of increase, and as the price of the permission to occupy, is a permanent gain for the latter, and a dead loss and annihilation for the former; to whom none of it will return, save in the forms of gift, alms, wages paid for his services, or the price of merchandise which he has delivered.

In a word, increase perishes so far as the borrower is concerned; or to use the more energetic Latin phrase,--_res perit solventi_.
3.