The English saying2

Failure is the mother of success.

失败乃成功之母。

Difficult circumstances serve as a textbook of life for people.

困难坎坷是人们的生活教科书。

A bird in the hand is worth two in the bush.

双鸟在林不如一鸟在手。

A good example is the best sermon.

身教胜似言教。

There are no shortcuts to any place worth going.

到任何值得去的地方都没有捷径。

Adversity is a good discipline.

苦难是磨练人的好机会。