Discourses: Book 3 24 : 5
But my mother mourns because she does not see me.—Yes, but why did she not learn the meaning of these words of the philosophers? And I am not saying that you ought to take no pains to keep her from lamenting, but only that a person ought not to want at all costs what is not his own. Now another's grief is no concern of mine, but my own grief is. Therefore, I will put an end at all costs to what is my own concern, for it is under my control: and that which is another's concern I will endeavour to check to the best of my ability, but my effort to do so will not be made at all costs. Otherwise I shall be fighting against God, I shall be setting myself in opposition to Zeus, I shall be arraying myself against Him in regard to His administration of the universe. And the wages of this fighting against God and this disobedience will not be paid by "children's children," but by me myself in my own person, by day and by night, as I start up out of dreams and am disturbed, trembling at every message, with my own peace of mind depending upon letters not my own. Someone has arrived from Rome. "If only there is no bad news!" But how can anything bad for you happen in a place, if you are not there? Someone arrives from Greece. "If only there is no bad news!" In this way for you every place can cause misfortune. Isn't it enough for you to be miserable where you are? Must you needs be miserable even beyond the seas, and by letter? Is this the fashion in which all that concerns you is secure?—Yes, but what if my friends over there die?—Why, what else than that mortal men died? Or how can you wish to reach old age yourself, and at the same time not behold the death of any that you love? Do you not know that in the long course of time many different things must needs happen; fever must overcome one man, a brigand another, a tyrant a third? Because such is the character of the air about us, such that of our associates; cold and heat and unsuitable food, and journeys by land and by sea, and winds and all manner of perils; this man they destroy, that man they drive into exile, another they send on an embassy, and yet another on a campaign. Sit down, therefore, and get all wrought up at each one of these events, mourning, unfortunate, miserable, depend on something other than yourself, and that not one thing or two, but tens upon tens of thousands of things!