"All kinds of things rejoiced my soul in the company of my friends -- to talk and laugh and to do each other kindnesses; read pleasant books together, pass from lightest jesting to talk of the deepest things and back again; differ without rancour, as a man might differ with himself, and when most rarely dissension arose, find our normal agreement all the sweeter for it; teach
each other or learn from each other; be impatient for the return of the absent, and welcome them with joy and their homecoming; these and such like things, proceeding from our hearts as we gave affection and received it back, and shown by face, by voice, by the eyes, and a thousand other pleasing ways, kindled a flame which infused our very souls and of many made us one. This is what men value in friends."

--St. Augustine