Book VII., chs. i.-x.; for justice: Aristotle, _Ethics_, Book V.;

Rickaby, _Moral Philosophy_, pp. 102-108, and _Aquinas Ethicus_ (see Index); Paulsen, _System of Ethics_, pp. 599-637; Mezes, _Ethics_, ch. xiii.; Mill, _Utilitarianism_, ch. v.; Sidgwick, _Methods of Ethics_,