We see that there are two different kinds of...societies: (a) parasitic societies and (b) producing societies. The former are those which live from hunting, fishing, or merely gleaning. By their economic activities they do not increase, but rather decrease, the amount of wealth in the world. The second kind of societies, producing societies, live by agricultural and pastoral activities. By these activities they seek to increase the amount of wealth in the world. - Carroll Quigley