MEN Ah cursed drab, what have you brought this water for? WOMEN What is your fire for then, you smelly corpse? Yourself to burn? - Aristophanes

Epops: Yet, certainly, the wise learn many things from their enemies; for caution preserves all things. From a friend you could not learn this, but your foe immediately obliges you to learn it. For example, the states have learned from enemies, and not from friends, to build lofty walls, and to possess ships of war. And this lesson preserves children, house, and possessions. Chorus [leader]: It is useful, as it appears to me, to hear their arguments first; for one might learn some wisdom even from one's foes. (tr. Hickie 1853, vol. 1, p. 322; l. 375 identical in SEA 1838, p. 236, and in Bartlett 1968, p. 91 or Archive.org)

Dicaepolis: Comedy too can sometimes discern what is right. I shall not please, but I shall say what is true. (tr. Athen. 1912, Perseus)

STREPSIADES. Very well then! Look this way. Do you see that little door and that little house? PHIDIPPIDES. Yes, father. But what are you driving at? STREPSIADES. That is the school of wisdom. There, they prove that we are coals enclosed on all sides under a vast extinguisher, which is the sky. If well paid, these men also teach one how to gain law-suits, whether they be just or not. PHIDIPPIDES. What do they call themselves? STREPSIADES. I do not know exactly, but they are deep thinkers and most admirable people.