Again, it is the aim of every moral system so to educate each man that his directive self may be as far as possible identified with his social self.

Even suicide is not a man's own affair, according to the voice of society which speaks in the moral code.
Nevertheless, lest the important truth be overlooked that social control implies a will that must meet the control half-way, it is well for the student of man to pay separate and special attention to the individual agent.

The last word in anthropology is: Know thyself..