A quote
Do you ask me what you should regard as especially to be avoided? I say, crowds; for as yet you cannot trust yourself to them with safety. I shall admit my own weakness, at any rate; for I never bring back home the same character that I took abroad with me. Something of that which I have forced to be calm within me is disturbed; some of the foes that I have routed return again. Just as the sick man, who has been weak for a long time, is in such a condition that he cannot be taken out of the house without suffering a relapse, so we ourselves are affected when our souls are recovering from a lingering disease.
Seneca·Letter 7 — On Crowds (§1)·trans. Gummere