16. But if a city is one continuous entity, equally so is a race that springs from one original stock and carries along with it certain common tendencies derived from that stock; and that which is born is not, like a manufactured article, separated from him who produced it; for it exists from him, not merely by him, so that it possesses and bears within itself some part of him, which is properly the object of chastisement or of commendation. Not in mere sport I would say that it was more unjust for the Athenians to destroy the brazen statue of Cassander,[45:1] and for the people of Syracuse to cast beyond their borders the body of Dionysius,[45:2] than for the posterity of those men to suffer punishment. For there was nothing of the nature of Cassander in the statue, and the soul of Dionysius had already left the corpse; but in Nisaeus,[45:3] and Apollocrates,[45:4] and Antipater and Philip,[45:5] and equally in other sons of wicked parents, there was implanted, and remains continuously, the part of their parents that had the mastery over their lives, and in the children this is not quiescent or inactive, but they live by it, and are nourished by it, and order their conduct by it, and think as it prompts. Nor is it at all marvellous or absurd that, being the children of such men, they should possess their qualities. In fine, I would say that, as in the healing art, whatever is beneficial is therefore right, and as he would be ridiculous who should think it wrong in a case of hip-disease to cauterize the thumb, and when the liver is ulcerated to scarify the upper part of the abdomen, and when the hoofs of oxen are tender to anoint the tips of their horns,[46:1] equally is he ridiculous who thinks in the matter of punishment that anything else than the cure of wickedness is right, and who is vexed when the remedy is applied to some parts rather than to others, after the manner of those who open a vein to cure ophthalmia. Nor does such a person seem to look beyond the range of his bodily senses; nor does he bear it in mind that a teacher in whipping one boy admonishes all, and that a general in the capital punishment of one out of ten brings all the guilty men under his command back to their duty. In truth not only is one part of the body cured through another part, but there are certain dispositions of mind and conduct, equally those that are evil and those that tend to reformation, as to which soul is influenced by soul more than body is affected by body. For from body to body the same affection and the same change seem to be transmitted; while in the case under consideration the soul, through the influence of the imagination, becomes worse or better in a degree corresponding to the intensity of hope or fear. 17. While I was still speaking, OLYMPICUS interrupted me, saying,—You seem to have, underlying this reasoning of yours, an hypothesis of prime importance,—the continued existence of the soul.