Book 3
3
The chief concern of a wise and good man is his own Reason. The body is the concern of a physician, and of a gymnastic trainer; and the fields, of the husbandman. The business of a wise and good man is to use the phenomena of existence conformably to Nature. Now, every soul, as it is naturally formed for an assent to truth, a dissent from falsehood, and a suspense of judgment with regard to things uncertain, so it is moved by a desire of good, an aversion from evil, and an indifference to what is neither good nor evil. For as a money-changer, or a gardener, is not at liberty to reject Caesar’s coin, but when once it is shown is obliged, whether he will or not, to deliver his wares in exchange for it, so is it with the soul. Apparent good at first sight attracts, and evil repels. Nor will the soul any more reject an evident appearance of good, than Caesar’s coin.
