text: For this very reason I regard as excellent the saying of Metrodorus, in a letter of consolation to his sister on the loss of her son, a lad of great promise: "All the Good of mortals is mortal." He is referring to those Goods towards which men rush in shoals. For the real Good does not perish; it is certain and lasting and it consists of wisdom and virtue; it is the only immortal thing that falls to mortal lot. But men are so wayward, and so forgetful of their goal and of the point toward which every day jostles them, that they are surprised at losing anything, although some day they are bound to lose everything. Anything of which you are entitled the owner is in your possession but is not your own; for there is no strength in that which is weak, nor anything lasting and invincible in that which is frail. We must lose our lives as surely as we lose our property, and this, if we understand the truth, is itself a consolation. Lose it with equanimity; for you must lose your life also.