I don't lose heart when I fail to do something.

当我没能做好某件事情的时候，我并不灰心。

youdao

How can I give in to my fears and fail to do something I have urged countless other women to do? Why am I so hesitant about taking on this challenge?

我怎么能够屈服于自己的恐惧，怎能做不到我一直鼓励无数其他女性做的事？为什么接受挑战时我如此踌躇不定？

youdao

"If they fail to do that and something else comes up, the rings won't be tarnished, they'll be broken, " he said.

CNN: ASIANOW - TIME Asia

One is that in order to learn how to do something well, you have to fail sometimes.

FORBES: Steve Jobs' 1985 Response to Andrew Ross Sorkin

This sometimes allows them to do something at which most people fail, but it also means they hardly ever hit the forecasts in their business plans.

ECONOMIST: A different breed of manager