Discipline makes hard men. Every hard man is capable of being a killer. But every killer is not capable of being a hard man. They can't endure that much. It's all about the endurance. That's why they become killers. Because they can't endure the pain. They need to kill the pain to stop it.
Mike TysonFor what I get paid to get into the ring, I owe it to my fans to uphold the institution of sportsmanship.
Mike Tyson