1.It is hard to please all.

　　众口难调。

　　2.If you want knowledge, you must toil for it.

　　要想求知，就得吃苦。

　　3.It is the unforeseen that always happens.

　　天有不测风云，人有旦夕祸福。

　　4.It takes three generations to make a gentleman.

　　十年树木，百年树人。

　　5.Jack of all trades and master of none.

　　门门精通，样样稀松。

　　6.Justice has long arms.

　　天网恢恢，疏而不漏。

　　7.Knowledge makes humble, ignorance makes proud.

　　博学使人谦逊，无知使人骄傲。

　　8.It is too late to grieve when the chance is past.

　　坐失良机，后悔已迟。

　　9.He is not fit to command others that cannot command himself.

　　正人先正己。

　　10.If you make yourself an ass,don't complain if people ride you.

　　人善被人欺，马善被人骑。