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。
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 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。
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。
