Mark Cuban always seems to come out on top.

His first job was tending bar in Dallas. Then he took a gig as a computer salesman. He was fired and he realized he "was never going to be a very good employee." 

So he started his first company, MicroSolutions, which he sold for $6 million.

He did even better with his next company about 1,000 times better. He founded and sold it to Yahoo for almost $6 billion.

Almost immediately, Cuban sold all of his Yahoo stock netting $2 billion in cash for himself. Weeks later, the market crashed.

Since then, Cuban has continued to work and invest. He owns the Dallas Mavericks and a cable channel, plus he's all over the media taking bites out of would-be entrepreneurs on ABC's pitch show "Shark Tank" and lighting up the conference circuit.

Cuban is known for saying what other people only think. Here are some of our favorite quotes.

On making a billion dollars

"The billion was, 'I can't f---ing believe it.' Literally, I was sitting in front of a computer, naked, hitting the refresh because we were close — waiting until my net worth hit that billion when the stock price got to a certain point, and then I kinda screamed and jumped around and then got dressed."

[Business Insider, August 2014]

On his approach to each day

"My dad says it over and over, 'Today's the youngest you’re ever going to be. You've got to live like it. You've got to live young every day.' And that's what I try to do."

[Business Insider, March 2014]

On his management style

"I micromanage you until I trust you. It's a back and forth continually… If I send you 30 emails I expect quick responses and direct action. Then we'll go to weekly reports. And I want the bad news first. I want to read, 'God dammit, we lost this sale.' I want to know the setbacks so that I can help you."

[Inc., May 2014]

On relaxation

"Relaxing is for the other guy. I may be sitting in front of the TV, but I'm not watching it unless I think there is something I can learn from it. I’m thinking about things I can use in my business and the TV is just there." 

["How To Win At The Sport Of Business," November 2013]

On making life fun for employees

"Keep a pulse on the stress levels and accomplishments of your people and reward them. My first company, MicroSolutions, when we had a record sales month, or someone did something special, I would walk around handing out $100 bills to salespeople."

[Business Insider, January 2012]

On owning the Mavericks

"Everybody thinks that we are in the basketball business. It's an NBA game; we're not in the basketball business. We're in the business of creating unique experiences."

[The Tennesseean, May 2014] 

On stupidity

"I'm the one guy who says don't force the stupid people to be quiet — I want to know who the morons are."

[The Tennesseean, May 2014] 

On nepotism

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

[Business Insider, July 2012]

On buying 'swag' for your employees

"A sure sign of failure for a startup is when someone sends me logo-embroidered polo shirts. If your people are at shows and in public, it's okay to buy for your own employees, but if you really think people are going to wear your branded polo when they're out and about, you are mistaken and have no idea how to spend your money."

[Business Insider, January 2012]

On what kind of business to start

"Don't start a company unless it's an obsession and something you love. If you have an exit strategy, it's not an obsession."

[Business Insider, January 2012]

On why startups should never hire PR firms

"I'm a believer that you accomplish much, much more with direct relationships than by using an intermediary. And that cash you keep in the bank can be the difference between staying alive as a small business, or not."

[Business Insider, January 2012]

On customer service

"Treat your customers like they own you. Because they do."

[Entrepreneur, March 2011]

If you think athletics is competitive, try physics.

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