A friend is easier lost than found
得朋友难，失朋友易。
A friend in need is a friend indeed.
患难见真情。
A friend is never known till a man has need.
需要之时方知友。
A friend without faults will never be found.
没有十全十美的朋友。
Between friends all is common.
朋友之间不分彼此。
He is a good friend that speaks well of us behind our backs. 背后说好话，才是真朋友。
Life without a friend is death.
没有朋友，虽生犹死。
Misfortune tests the sincerity of friends.
患难见真情。
Old friends and old wines are best.
陈酒味醇，老友情深。
A faithful friend is hard to find.
益友难得。
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 hiscrimes. 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.
曩中有钱，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 have 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 every body 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 good friend is my nearest relation.
良友如近亲。
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