聪明人从旁人的错误中吸取教训，愚笨者则从自身的错误中吸取教训。

Wise men learn by other men's mistakes, fools by their own.

youdao

当我是肉食者时，我从没有想过素食的人是在做愚笨的事情。

When I was a meat eater, I never think vegetarians are doing something stupid.

youdao

另外，监管者还经常停滞在愚笨电网的年代。

Moreover, regulators are often still stuck in the era of the dumb grid.

youdao