“If this is how you treat your friends, no wonder you have so many enemies.”

“Reveal not every secret you have to a friend, for how can you tell but that friend may hereafter become and enemy. And bring not all mischief you are able to upon an enemy, for he may one day become your friend.”

“Instead of loving your enemies, treat your friends a little better.”

“How often, you wonder, has the direction of your life been shaped by such misunderstandings? How many opportunities have you been denied--or, for that matter, awarded--because someone failed to see you properly? How many friends have you lost, how many have you gained, because they glimpsed some element of your personality that shone through for only an instant, and in circumstances you could never reproduce? An illusion of water shimmering at the far bend of a highway.”

“Is this one of those keep-your-friends-close-and-your-enemies-closer things?""I though it was keep your friends close so you have someone to drive the car when you sneak over to your enemy's house at night and throw up in his mailbox.”

“It is not wise to think of people as either friends or enemies as if you were the center of the universe; many are not aware of your existance!”