If you want knowledge, you must toil¹ for it.

要想求知，就得吃苦。

Industry is the parent of success.

勤奋是成功之母。

It is better to die when life is a disgrace.

宁为玉碎，不为瓦全。

It is easier to get money than to keep it.

挣钱容易攒钱难。

It is easy to be wise after the event.

事后诸葛亮好当。

It is easy to open a shop but hard to keep it always open.

创业容易守业难。

It is hard to please all.

众口难调。 (又作: Tastes differ.)

It is never too old to learn.

活到老，学到老。

It is no use crying over spilt milk.

覆水难收。

It is the first step that costs troublesome.

万事开头难。

It is the unforeseen that always happens.

天有不测风云，人有旦夕祸福。

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

坐失良机，后悔已迟。

(grieve 悲痛,伤心,忧伤)

It never rains but it pours.

不鸣则已，一鸣惊人。

It takes three generations to make a gentleman.

十年树木，百年树人。

Jack² of all trades and master of none.

门门精通，样样稀松。

Judge not from appearances.

人不可貌相，海不可斗量。

Justice has long arms.

天网恢恢，疏而不漏。

Keep good men company and you shall be of the number.

近朱者赤，近墨者黑。

Kill two birds with one stone.

一箭双雕。

Kings go mad, and the people suffer for it.

君王发狂，百姓遭殃。

Kings have long arms.

普天之下，莫非王土。

Knowledge is power.

知识就是力量。

Knowledge makes humble³, ignorance makes proud.

博学使人谦逊，无知使人骄傲。

Learn and live.

活着，为了学习。

Learning makes a good man better and ill man worse.

好人越学越好，坏人越学越坏。

Learn not and know not.

不学无术。

Learn to walk before you run.

先学走，再学跑。

Let bygones be bygones.

过去的就让它过去吧。