A quote
I can show you many who have lacked, not a friend, but a friendship; this, however, cannot possibly happen when souls are drawn together by identical inclinations into an alliance of honourable desires. And why can it not happen? Because in such cases men know that they have all things in common, especially their troubles. You cannot conceive what distinct progress I notice that each day brings to me.
Seneca·Letter 6 — On Sharing Knowledge (§3)·trans. Gummere