Never think there is anything impossible for the soul. It is the greatest heresy to think so. If there is sin, this is the only sin; to say that you are weak, or others are weak.
Above all, beware of compromises. I do not mean that you are to get into antagonism with anybody, but you have to hold on to your own principles in weal or woe and never adjust them to others "fads" thought the greed of getting supporters.
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.