"I know that if I am not at my best and I do not perform I will lose. I'm never over-confident. Over-confidence is a weakness because it stops you training as hard as you should. It has happened to fighters like Naseem Hamed and Lennox Lewis. Complacency beats fighters."

"I feel like those words are going to be engraved on my tombstone. It was brought up every single time I did an interview. I apologized for it; I acknowledged it; I said it was true; I said it was a jo…"

"The Spartans meanwhile, man to man, and with their war songs in the ranks, exhorted each brave comrade to remember what he had learned before; well aware that the long training of action was of more u…"

"You have a dilemma that is even greater than the one you think you have of not knowing which is the right God. It's the dilemma of 'guilt'. Everyone has it. You can drown it in booze or say it doesn't…"

"No sincere assertion of fact is essentially unaccompanied by feelings of intellectual satisfaction or of a persuasive desire and a sense of personal responsibility."