Man must be sharpened on man, like knife on stone.

人对人要像刀对石头一样锋利。

相关名言

Give your wife the short knife, and keep the long one for yourself.

把短刀给你妻子,把长刀留给你自己。

At that level, every goal is like a knife in the ribs.

在那个水平上,每一个目标都像是肋骨上的一把刀。

Jade and men, both are sharpened by bitter tools.

玉和人,都是用苦工磨成的。