Fielding
Friendship demands a religious treatment. We must not be wilful, we must not provide. We talk of choosing our friends, but friends are self-elected. Reverence is a great part of it.
Emerson
Friendship with the upright; friendship with the sincere; and friendship with the man of much observation: these are advantageous. Friendship with the man of specious airs; friendship with the insinuatingly soft; and friendship with the glib-tongued: these are injurious.
Confucius
Oh, be my friend, and teach me to be thine!
Emerson