Whippet Cetera: Courage's dark counterpart

I read an interesting idea that I want to share!

You might have heard the following quote by Samuel Johnson (recorded 1775):

Courage is reckoned the greatest of all virtues; because, unless a man has that virtue, he has no security for preserving any other.

or Maya Angelou’s more contemporary paraphrasing:

Courage is the most important of all the virtues, b…