Keep thing seven years and you will find a use for it. 备而不用。
 
    Keep good men company, and you shall be of the number. 近朱者赤。
 
    Keeping is harder than winning. 创业不易，守业更难。
 
    Keep some till more come. 更多的到手以前，要保持手里的一点。
 
    Keep your breath to cool your porridge. 少管闲事。
 
    Keep your eyes wide open before marriage, and half shut afterwards. 婚前张开眼，婚后半闭月。
 
    Keep your mouth shut and your eyes open. 要多看少说。
 
    Kill the goose that laid the golden egg. 杀鸡取蛋
 
    Kind hearts are more than coronets. 善良的心灵胜于显贵的地位。
 
    Kindness always begets kindness. 善有善根。
 
    Kindness is the golden chain by which society is bound together. 善良是连结社会的金链。
 
    Kindness is the language that the deaf can hear and the dumb understand. 善良为语言，聋子能天见哑巴懂心间。