St. Augustine on friendship

"For it is true, indeed, that good men are seen to be the sources of no small comfort to others in this world. For if we be harassed by poverty, or saddened by bereavement, or disquieted by bodily pain, or pining in exile, or vexed by any kind of calamity, let good men visit us, men who can not only rejoice with them that rejoice, but also weep with them that weep, Romans 12:15 and who know how to give profitable counsel, and win us to express our feelings in conversation: the effect is, that rough things become smooth, heavy burdens are lightened, and difficulties vanquished most wonderfully. But this is done in and through them by Him who has made them good by His Spirit. On the other hand, although riches may abound, and no bereavement befal us, and health of body be enjoyed, and we live in our own country in peace and safety, if, at the same time, we have as our neighbours wicked men, among whom there is not one who can be trusted, not one from whom we do not apprehend and experience treachery, deceit, outbursts of anger, dissensions, and snares, in such a case are not all these other things made bitter and vexatious, so that nothing sweet or pleasant is left in them? Whatever, therefore, be our circumstances in this world, there is nothing truly enjoyable without a friend."

Letter 130