Between friends all is common.

　　朋友之间不分彼此

　　Better an open enemy than a false friend.

　　明枪易躲，暗箭难防。

　　Admonish your friends in private, praise them in public.

　　在私底下要忠告你的朋友，在公开场合又表扬你的朋友。

　　A friend is best found in adversity.

　　患难见真友。

　　A friend is a second self.

　　朋友是另一个我。

　　A friend in court is better than a penny in purse.

　　囊中有钱，不如朝中有友。

　　A faithful friend is hard to find.

　　益友难得。

　　A bosom friend afar brings distant land near.

　　海内存知己，天涯若比邻。

　　Without a friend the world is a wilderness.

　　没有朋友，世界就等於一片荒野。

　　When a friend asks, there is no tomorrow.

　　朋友的要求不要拖。

　　We can live without our friends, but not without our neighbours.

　　生活可无友，邻居不能无。

　　We can live without a brother, but not without a friend.

　　我们生活中可以没有兄弟，但不能没有朋友。

　　Trust not the praise of a friend, nor the contempt of an enemy.

　　不要信赖朋友的赞扬，也不要仇敌的轻蔑放在心上。

　　To preserve a friend three things are required: to honour him present, praise him absent, and assist him in his necessities.

　　维持友谊需要三点∶当面尊重他，背后赞扬他，需要时帮助他。

　　Everything is good when new, but friend when old.

　　东西新的好，朋友老的好。

　　Books, like friends, should be few and well chosen.

　　书籍如朋友，应该少而精。

　　A friend to everybody is a friend to nobody.

　　广交友，无深交。

　　A friend is not so soon gotten as lost.

　　交友慢，失友快。

　　A friend is never known till a man has need.

　　不到患难时，永远不能认识真正的朋友。