“Before you were my enemy, you were my best friend.”

“The enemy of my enemy is my friend, so that makes Google my best friend.”

“If the enemy of my enemy is my friend, then surely you should be friend to my friend.”

“In many respects, my best friends were dogs.”

“She and I were still friends, but not best friends, not like we used to be. But we were still friends. She'd known me my whole life. It's hard to throw away history. It was like you were throwing away a part of yourself.”

“It occurred to me that if my friends were loathsome, perhaps I needed to learn from my enemies.”

“And it seemed to me that there were fires
Flying till dawn without number
And I never found out things-those
Strange eyes of his-what colour?

Everything trembling and singing and
Were you my enemy or my friend,
Winter was it or summer?”

“In Aberdeen, I hated my best friends with a passion, because they were idiots.”

“And I was holding someone who was destined to be my best friend, or possibly my worst enemy.”

“My friends call me by my name."
"You don't have any friends."
"I don't want you to be my friend, Selia, or my servant, not now. I thought you were both. You have let me know I was wrong. So are you to treat me so. You are wrong.”