in time of prosperity, friends will be plenty; in time of adversity, not one amongst twenty. 富在深山有遠親，窮在鬧市無人

thy friend has a friend and thy friend’s friend has a friend so be discreet. 你的朋友有朋友，朋友的朋友又有朋友，所以要謹慎小心。

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，背后贊揚他，需要時幫助他。

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。

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

trust not the praise of a friend, nor the contempt of an enemy. 不要信賴朋友的贊揚，也不要仇敵的輕蔑放在心上。

a friend to everybody is a friend to nobody. 廣交友，無深交。