Perfect sincerity, holiness, gigantic intellect, and all-conquering will. Let only a handful of men work with these, and the whole world will be revolutionized.
I love boxing and it did a lot for me. But sometimes it made me think how savage human beings could be to each other. That wasn't the kind of boxer I wanted to be. My strategy was to be as scientific as I could when I fought. I didn't want to be seriously hurt, and I didn't want to do that to anybody else either.