Muhammad Ali: "Impossible is not a fact. It's an opinion."

What do you stand for? Anything?

Are there moral lines which you will not cross?

Are there principles greater in life than your own net worth or professional success? What are you willing to sacrifice to uphold them?

A man reveals his answers to these questions by the way he conducts himself.

This is the story of a leader of men.

Cassius Clay receives the …