Be slow in choosing a friend; slower in changing.  选择朋友要审慎，摒弃更要审又慎。    

A friend in need is a friend indeed.  患难见真交。    

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。  

A friend exaggerates a man's virtue, an enemy his crimes.  朋友宣扬人的美德，敌人夸大人的罪过。    

A friend in court is better than a penny in purse.  囊中有钱，不如朝中有友。    

A friend is a second self.  朋友是另一个我。    

A friend is best found in adversity.  患难见真友。    

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。    

A friend is not so soon gotten as lost.  交友慢，失友快。    

A friend to everybody is a friend to nobody.  广交友，无深交。    

A friend without faults will never be found.  没有缺点的朋友是永远找不到的。    

A joke never gains an enemy but often loses a friend.  开玩笑总不能化敌为友，反而有时会失去朋友。    

Better lose a jest than a friend.  宁可不说一句俏皮话，以免得罪朋友们。    

Choose an author as you choose a friend.  选书如择友。    

He that has a full purse never wants a friend.  只要袋里有，不愁没朋友。