Τίς εἶναι θέλεις, σαυτῷ πρῶτον εἰπέ: εἶθ' οὕτως ποίει ἃ ποιεῖς. - Epictetus

Whoever then has knowledge of good things, would know how to love them; but how could one who cannot distinguish good things from evil and things indifferent from both have power to love?

Yes, but what good will all this do me when a child of mine dies, or if my brother, or I myself, have to die or be tortured?’ [19] Nothing. Because that’s not why you came, not why you took your seat in front of me, not the reason you sometimes sacrificed sleep to study by lamplight.

Does anyone bathe hastily? Do not say that they do it ill, but hastily. Does anyone drink much wine? Do not say that they do ill, but that they drink a great deal. For unless you perfectly understand their motives, how should you know if they act ill? Thus you will not risk yielding to any appearances except those you fully comprehend.