between friends all is common.
朋友之間不分彼此
better an open enemy than a false friend.
明槍易躲，暗箭難防。
admonish your friends in private, praise them in public.
a friend is best found in adversity.
患難見真友。
a friend is a second self.
朋友是另一個我。
a friend in court is better than a penny in purse.
囊中有錢，不如朝中有友。
a faithful friend is hard to find.
益友難得。
a bosom friend afar brings distant land near.
海記憶體知己，天涯若比鄰。
without a friend the world is a wilderness.
沒有朋友，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.
生活可無友，鄰居不能無。
we can live without a brother, but not without a friend.
我們生活中可以沒有兄弟，但不能沒有朋友。
trust not the praise of a friend, nor the contempt of an enemy.
不要信賴朋友的讚揚，也不要仇敵的輕蔑放在心上。
to preserve a friend three things are required: to honour him present, praise him absent, and assist him in his necessities.
維持友誼需要三點∶當面尊重他，背後讚揚他，需要時幫助他。
everything is good when new, but friend when old.
東西新的`好，朋友老的好。
books, like friends, should be few and well chosen.
書籍如朋友，應該少而精。
a friend to everybody is a friend to nobody.
廣交友，無深交。
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.
不到患難時，永遠不能認識真正的朋友。