"From this the merciful effect of private property is evident, though it is seldom recognized. It is not the cause of destructive envy, as the apostles of equality are always seeking to persuade us, but a necessary protective screen between people. Wherever there have ceased to be any enviable material goods or where these have for some reason been withdrawn from envy’s field of vision, we get the evil eye and envious, destructive hatred directed against the physical person. It might almost be said that private property first arose as a protective measure against other people’s envy of our physical qualities."