Discourses, How We May Discover the Duties of Life from Names

Epictetus — The Slave

But you worry about losing some money so you won't get hurt financially? Does losing other things not hurt a person? If you lost your knowledge of grammar or music, wouldn't you consider that a loss? And if you lose your sense of decency, self-control, and kindness, do you think that's nothing? The first things I mentioned — money and such — you lose because of outside forces beyond your control. The second things — your character — you lose through your own fault. With the first type, it's not shameful to lack them or lose them. But with the second type, it's shameful and disgraceful not to have them or to lose them. That's real misfortune.

Epictetus — The Slave Original

But (I suppose) you must lose a bit of money that you may suffer damage? And does the loss of nothing else do a man damage? If you had lost the art of grammar or music, would you think the loss of it a damage? and if you shall lose modesty, moderation ([Greek: chtastolaen]) and gentleness, do you think the loss nothing? And yet the things first mentioned are lost by some cause external and independent of the will, and the second by our own fault; and as to the first neither to have them nor to lose them is shameful; but as to the second, not to have them and to lose them is shameful and matter of reproach and a misfortune.