Discourses: Book 3 22 : 12
And when the young man asked whether he, as a Cynic, should consent, if, when he had fallen ill, a friend asked him to come to his house, so as to receive proper nursing, Epictetus replied: But where will you find me a Cynic's friend? For such a person must be another Cynic, in order to be worthy of being counted his friend. He must share with him his sceptre and kingdom, and be a worthy ministrant, if he is going to be deemed worthy of friendship, as Diogenes became the friend of Antisthenes, and Crates of Diogenes. Or do you think that if a man as he comes up greets the Cynic, he is the Cynic's friend, and the Cynic will think him worthy to receive him into his house? So if that is what you think and have in mind, you had much better look around for some nice dunghill, on which to have your fever, one that will give you shelter from the north wind, so that you won't get chilled. But you give me the impression of wanting to go into somebody's house for a while and to get filled up. Why, then, are you even laying your hand to so great an enterprise?