No pain, no gain, as the saying goes.

正如俗话所说，没有付出就没有收获。

As the saying goes, Bad luck often brings good luck.

正如谚语所说，“塞翁失马，焉知非福。”

As an old saying goes, “A friend in need is a friend indeed.”

正如一句俗语所言：“患难朋友才是真朋友。”

As the Chinese saying goes, A kind-hearted person lives a long life.

正如中国谚语所说，“好人一生平安。”

As the saying goes, time is money.

俗话说，时间就是金钱。

As the saying goes, you reap what you sow.

俗话说，一分耕耘一分收获。

As the saying goes, many hands make light work.

常言道，众人拾柴火焰高。

As the saying goes, the early bird catches the worm.

俗话说，早起的鸟儿有虫吃。

As the saying goes, failure is the mother of success.

俗话说，失败是成功之母。

As the saying goes, good things come to those who wait.

俗话说，好事多磨。