Never offer to teach fish to swim. 切莫教鱼游泳。

　　Never put off till tomorrow what may be done today. 今日事，今日毕。

　　Never put the plow before the oxen. 不要本末倒置。

　　Never say die! Up man, and try. 不要气馁，朋友，振作起来，干!

　　Never say of another what you would not have him hear. 莫说不想让人听见的话。

　　Never show the bottom of your purse or your mind. 钱包不露底，思想需保留。

　　Never swap (or swop) horses while crossing the stream. 骑渡中流莫换马。(指危难时不宜做大变动)

　　Never think yourself above your business. 切莫自视过高。

　　Never too late to mend. 过则勿惮改。

　　Never too late to repent. 过则勿惮改。

　　Never too old (or late) to learn. 学到老，学不了。

　　Never (or Don't) trouble trouble till trouble troulbes you. 切莫自寻麻烦。

　　Never trust another what you should do yourself. 自己应该做的事，决不要委托别人做。

　　Never trust of fine words. 切勿轻信漂亮的言词。

　　New brooms sweep clean. 新官上任三把火。