Mike Tyson

"Success requires sacrifice, but sacrifice guarantees nothing."

"I'm not the best talker, but I'm the best doer."

"Loneliness is a choice, but solitude can be enlightening."

"You need to go through the struggle to appreciate the victory."

"The man who has no imagination has no wings."

"Discipline is doing what you hate to do, but nonetheless doing it like you love it."

"You're not going to come into the world the way you want to."

"I'm the best ever. I'm the most brutal and vicious and most ruthless champion there's ever been."

"Whenever I get angry, I get to thinking and when I get to thinking, I get to working."

"Fear is the path to the dark side."

"I don't try to imagine a God. It's beyond my apprehension."

"Boxing is like a chess match. You have to be strategic and smart."

"I'm just like Malcolm X. I'm a marked man. This thing here is to make money."

"Loyalty is everything to me."

"I just want to conquer people and their souls."

"Real destruction is when you lose your mind."

"You come home, and you party. But after that, you get a hangover and realize that nobody actually likes you."

"Once we start deceiving ourselves, the rot begins."

"I'm a Hobbesian man. Life is a struggle."

"Success is like death. The more successful you become, the higher the houses in the hills get."

"I'm on the Zoloft, at peace with myself."

"Humility is key. No matter how great you are, you're still human."

"I trained like I was fighting a man 300 pounds heavier than me."

"Knowledge is power, but enthusiasm pulls the switch."

"When you're young, you're stupid. Experience is what brings wisdom."

"I'm a different man now. I'm humble."

"The key to life is to make your fears your strength."

"I pay people to waste my time."

"Life is just a test of character."

"Defeat is not final unless you accept it as such."