Discourses 2.6 ¶1 — Epictetus

Epictetus, Discourses 2.6 ¶1

The hypothetical proposition is indifferent: the judgment about it is not indifferent, but it is either knowledge or opinion or error. Thus life is indifferent: the use is not indifferent. When any man then tells you that these things also are indifferent, do not become negligent; and when a man invites you to be careful (about such things), do not become abject and struck with admiration of material things. And it is good for you to know your own preparation and power, that in those matters where you have not been prepared, you may keep quiet, and not be vexed if others have the advantage over you. For you too in syllogisms will claim to have the advantage over them; and if others should be vexed at this, you will console them by saying, “I have learned them, and you have not.” Thus also where there is need of any practice, seek not that which is acquired from the need (of such practice), but yield in that matter to those who have had practice, and be yourself content with firmness of mind.