courage

It took great courage for the whistleblower to expose the company's illegal activities.

(Chinese) 举报人鼓起巨大的勇气揭露了公司的非法活动。

The firefighter showed immense courage by entering the burning building to save the child.

(Chinese) 消防员冲进燃烧的大楼救出孩子，展现了极大的勇气。