“The two great values to be gained from social existence are: knowledge and trade. Man is the only species that can transmit and expand his store of knowledge from generation to generation; the knowledge potentially available to man is greater than any one man could begin to acquire in his own lifespan; every man gains an incalculable benefit from the knowledge discovered by others. The second great benefit is the division of labor: it enables a man to devote his effort to a particular field of work and to trade with others who specialize in other fields. This form of cooperation allows all men who take part in it to achieve a greater knowledge, skill and productive return on their effort than they could achieve if each had to produce everything he needs, on a desert island or on a self-sustaining farm. But these very benefits indicate, delimit and define what kind of men can be of value to one another and in what kind of society: only rational, productive, independent men in a rational, productive, free society. A society that robs an individual of the product of his effort, or enslaves him, or attempts to limit the freedom of his mind; or compels him to act against his own rational judgment—a society that sets up a conflict between its edicts and the requirements of man’s nature—is not, strictly speaking, a society, but a mob held together by institutionalized gang-rule. Such a society destroys all the values of human coexistence, has no possible justification and represents, not a source of benefits, but the deadliest threat to man’s survival. ”