The rarest?

What is the rarest: bravery in battle, great intelligence, or moral courage?

This is not a trick question yet answering it or living it is.

Hemingway wrote in A Farewell to Arms in 1929 “Few men are willing to brave the disapproval of their fellows, the censure of their colleagues, the wrath of their society. Moral courage is a rarer commodity than bravery in battle or great intelligence. Yet it is the one essential, vital quality of those who seek to change a world which yields most painfully to change.”

Serenity supports a life of moral courage so that the choices which truly benefit others supports the honest person which Diogenes.

Thomas Paine wrote “Of more worth is one honest man to society, and in the sight of God, than all the crowned ruffians that ever lived.”