1、One tree does not make a forest.

独木不成林。

2、To find friendship offer friendship.

以友谊换友谊。

3、A man is known by his friends.

什么人交什么朋友。

4、Life without a friend is death without a witness.

没有朋友的生活等于孤独一人死去。

5、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。

6、A friend in need is a friend indeed.

在你最需要时出现 朋友上一真正的朋友。

7、A father is a treasure, a brother is a comfort, but a friend is both.

父亲是财富，兄弟是安慰，朋友兼而有之。

8、A frie nd is a second self.

朋友是另一个我。

9、Be slow in choosing a friend; slower in changing.

选择朋友要审慎，摒弃更要审又慎。

10、A friend exaggerates a mans virtue, an enemy his crimes.

朋友宣扬人的美德，敌人夸大人的罪过。

11、A friend is best found in adversity.

患难见真友。

12、A friend is easier lost than found.

得朋友难，失朋友易。

13、True friendship lasts forever.

真正的友谊恒久不变。

14、He who mistrusts most should be trusted least.

最不信任别人的人最不应该得到信任。

15、A bosom friend afar brings a distant land near.

海内存知己，天涯若比邻。