我从这个可以引以为戒的经历中学到了很多。

I have learned a lot from the chastening experience.

youdao

幸福的人就是能从别人的不幸中引以为戒的人。

Happy is he who can take warning from the mishap of others.

youdao

我们必须引以为戒的是；我们厌恶某些人，甚至厌恶整个人类，并不等于有权伤害自己的同类，不管他们是何等地可憎。

The lesson we have to learn is that our dislike for certain persons, or even for the whole human race, does not give us any right to injure our fellow creatures, however odious they may be.

youdao