the correctness of the principle is attested. It is the natural, unmistakable, and sharp separation between negative and positive, between doing no harm, and helping. The terms in common use — namely, “the duties of law,” and “the duties of virtue,” (the latter being also called “duties of love,” or “imperfect duties,”) are in the first place faulty because they co-ordinate the genus with the species; for justice is one of the virtues.

And next, they owe their origin to the mistake of giving a much too wide extension to the idea “Duty”; which I shall reduce to its proper limits below. In place, therefore, of these duties I put two virtues; the one, justice, and the other, loving-kindness; and I name them cardinal virtues, since from them all others