You should get rid of your foolhardiness.

你必须改掉你的蛮干作风。

youdao

What he once took as boldness he will now judge as foolhardiness.

他以前认为的勇敢现在觉得是有勇无谋。

youdao

That determination o Arjuna, by which the unintelligent is unable to abandon dreaming, fearing, grieving, depression and foolhardiness is in the nature of nescience.

无法放弃妄想，恐惧，悲哀，沮丧和蛮干愚勇，他们的决心是处于愚昧无知的品性中。

youdao

But perhaps the electoral calculus has shifted enough to make debating these genuinely challenging issues an act of courage rather than of foolhardiness.

FORBES: Moral Hazard: Corrosively Dissolving Democracy From The Inside