她缺乏面对恐惧的勇气。

She lacked the ___courage to confront her fears.

在捍卫原则时，每个人都应该表现出勇气。

Everyone should show ___courage when defending their principles.

他多年来一直想做这件事，但从未找到勇气。

He wanted to do it for years but never found the ___courage.