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。