Undisputed Truth by Mike Tyson with Larry Sloman:
I talked to Camille later. She had been at the fight watching from the front row and she thought that I looked like I was in a daze.
“You didn’t throw any vicious punches,” she said. “You looked like you wanted to lose. Maybe you just got tired of it.”
She was probably right. I believed in the Cus theory that the only thing wrong with defeat is if nothing is learned from it. Cus always used to tell me that fighting is a metaphor for life. It doesn’t matter if you’re losing; it’s what you do after you lose. Are you going to stay down or get back up and try it again? Later I would tell people that my best fight ever was the Douglas fight because it proved that I could take my beating like a man and rebound.