The man who backbites an absent friend, nay, who does not stand up for him when another blames him, the man who angles for bursts of laughter and for the repute of a wit, who can invent what he never saw, who cannot keep a secret -- that man is black at heart: mark and avoid him.
Our friendships hurry to short and poor conclusions, because we have made them a texture of wine and dreams, instead of the toughfibre of the human heart. The laws of friendship are austere and eternal, of one web with the laws of nature and of morals.
It is easy enough to be friendly to one's friends. But to befriend the one who regards himself as your enemy is the quintessence of true religion. The other is mere business.
no person is your friend (or kin) who demands your silence, or denies your right to grow and be perceived as fully blossomed as you were intended. Or who belittles in any fashion the gifts you labor so to bring into the world.
If two friends ask you to judge a dispute, don't accept, because you will lose one friend; on the other hand, if two strangers come with the same request, accept because you will gain one friend.