It's known that failure is the mother of success.

众所周知，失败乃成功之母。

youdao

Failure is the mother of success.

失败是成功之母。

《新英汉大辞典》

Failure is the mother of success. If there is nothing good about failure, how can it be the mother of success?

失败是成功之母，失败如果没有好处，为什么是成功之母？

《新英汉大辞典》