Mark Cuban

"If you can't admit a failure, you're not an entrepreneur. You are not a good business person. There's nothing brilliant about what you are doing."

"Culture is very important to the Mavs. Your best player has to be a fit for what you want the culture of the team to be. He has to be someone who leads by example. Someone who sets the tone in the locker room and on the court. It isn't about who talks the most or the loudest. It is about the demeanor and attitude he brings."

"I still work hard to know my business. I'm continuously looking for ways to improve all my companies, and I'm always selling. Always."

"I love to compete. To me, business is the ultimate sport. It's always on. There is always someone trying to beat me."

"Sweat equity is the most valuable equity there is. Know your business and industry better than anyone else in the world. Love what you do or don't do it."

"It’s not about money or connections — it’s the willingness to outwork and out-learn everyone… And if it fails, you learn from what happened and do a better job next time"

"It doesn’t matter how many times you fail. It doesn’t matter how many times you almost get it right. No one is going to know or care about your failures, and neither should you. All you have to do is learn from them and those around you because all that matters in business is that you get it right once. Then everyone can tell you how lucky you are."

"It's not about money or connections. It's the willingness to outwork and outlearn everyone."