He that respects not is not respected.

欲受人敬，要先敬人。

So said, so done.

说到做到，言出必行。

One can not be in two places at once.

一心不可二用。

Do not teach fish to swim.

不要班门弄斧。

One man’s meat is another man’s poison.

青菜萝卜，各有所爱。

Look before you leap.

三思而后行。

 A friend in need is a friend indeed.

患难中的朋友才是真正的朋友。

Where there is swill, there is a way.

有志者事竟成。

 Well begun is half done.

好的开端是成功的一半。

Sharpening your axe will not delay your job of cutting wood.

磨刀不误砍柴功。

Practice makes perfect.

熟能生巧。

Kill two birds with one stone.

一箭双雕。

Knowledge is power.

知识就是力量。

Failure is the mother of success.

失败是成功之母。

Nothing is too difficult if you put your heart into it.

世上无难事，只要肯攀登。