A brother may not be a friend, but a friend will always be a brother. 兄弟未必是朋友，而朋友总是兄弟。 Benjamin Franklin

　　Love, friendship, respect, do not unite people as much as a common hatred for something. 爱情、友谊和尊敬都不如对某物的共同的恨那样能把人们团结起来。Chekhow

　　If you would keep your secret from an enemy, tell it not to a friend.　 如果不想让你的敌人得知你的秘密，就不要把秘密告诉你的朋友。 Benjamin Franklin

　　True friendship foresees the needs of other rather than proclaim it's own. 真正的友人总是考虑别人的需要而不是提出自己的要求。A.Maurois