A true friend is one soul in two bodies.
摯友如異體同心。
A life without a friend is a life without a sun.
人生沒有朋友,猶如人生沒有了太陽。
Be slow in choosing a friend; slower in changing.
擇友亦慎,棄之更慎。
Everything is good when new, but friends when old.
物莫如新,友莫如故。
A hedge between keeps friendship green.
朋友間保持一定的距離可使友誼永存。
It is better to be alone than in bad company.
交惡友不如獨處。