By falling we learn to go safely.是什么意思？

By falling we learn to go safely.

吃一堑，长一智。

by

prep. 在…旁边，表示方式，由于，经过；adv. 经过，表示保留或保存时用，短暂拜访；

例句
...expensive make-up that we saw being advertised by a beautiful model...
我们所见的由一位漂亮模特代言的昂贵化妆品

falling

n. 落下，坠落，下降，陷落；adj. 落下的，下降的；v. 降低( fall的现在分词 )，来临，成为，降落；

例句
The profits rise was achieved against a backdrop of falling metal prices.
在金属价格下跌的背景下，利润提高了。

we

pron. 我们，咱们，笔者，本人，朕，人们；

例句
...expensive make-up that we saw being advertised by a beautiful model...
我们所见的由一位漂亮模特代言的昂贵化妆品

learn

vt.& vi. 学习，学会，习得，得知，记住；vt. 记住，学习，得知，认识到；vi. 学习，获知；

例句
Some parents believe a boy must learn to stand up and fight like a man.
有些父母认为男孩子必须学会像男子汉一样顶天立地，勇于抗争。

to

prep. 向，朝着，到，关于，属于；adv. 朝一个方向的，到某种状态，关闭；

例句
I suggest you leave it to an expert...
我建议你把它留给专家来解决。

go

vi. 走，离开，去做，进

例句
I would love to go abroad this year, perhaps to the South of France.
我今年很想出国，可能是去法国南部。

safely

adv. 安全地，平安地；

例句
By day a woman could safely walk the streets, but at night the pavements became dangerous...
白天的时候，妇女可以安全地在街上行走，而到了夜晚人行道上会变得很危险。