Floyd "Money" Mayweather Jr., who recently defeated MMA superstar Conor McGregor and broke Rocky Marciano's historic boxing record of 49-0, is now, arguably, the greatest boxer of all time. If you're just a casual observer of the sport, though, you might know Mayweather more for his lavish spending habits than his perfect record.

He'll earn north of $300 million for his most recent bought. Although he's now a part of an exclusive club of billionaire athletes, ranging from Tiger Woods and Michael Jordan, life wasn't always just about big pay days for Mayweather. Through it all he maintained discipline and was never afraid to bet on himself.

Those are two values every entrepreneur should learn--and here's why.

A lot of people don't like Floyd. He's always been a strategic, defensive and composed fighter. This hasn't always led to the most entertaining fights, hence why Floyd has been labeled a "scared" or "ducking" fighter by some. His supposed cockiness and brashness has turned a lot of people off, too. Not to mention his domestic violence woes.

According to ESPN, these include "five convictions in domestic battery or assault cases involving four different women." In short, Mayweather hasn't had it easy.

But, for better or worse, these two traits will ensure that your performance never suffers and you get through anything--or anyone--whether the world is on your side or not.

Maintain a Disciplined Focus

Mayweather grew up in a broken home. His mother was an alcoholic and a drug addict. His father, Floyd Mayweather Sr., was a professional boxer who sold drugs to make ends meet. Eventually, he ended up incarcerated. Mayweather Jr. then quit school at just 16.

With his back against the wall, Mayweather had no choice but to fight--and focus.

He built up a record of 84-4 in the amateur ranks, training relentlessly, every single day. This training regiment began when he was just a child and never stopped. Even in his early 40s, Mayweather hasn't skipped a beat.

It should come as no surprise that to reach heights like Mayweather, you don't multitask or do a million different things each day. It's about shunning distractions and honing in on, with great vigor and discipline, your key strengths and skills.

Prioritize and dedicate the bulk of your day--ideally, the first few hours of your morning--to developing your 2-3 greatest strengths.

It's hard at first to focus this intensely so in the beginning, whenever you feel your focus begin to wane, give yourself a little mental nudge to stay on task.

As a writer, some mornings I wake up "uninspired" and wanting to do other things. Yet, I sit down and write anyway, drumming up the inspiration on command. I'm grateful for this ability, but, like Mayweather, you don't just wake up inspired or good. You have to hone that discipline and refine those skills everyday.

Bet on Yourself

By the end of the 2006, Mayweather's earning power began to grow alongside his unblemished boxing record. He defeated every fighter put in front of him.

Yet, he still felt confined by his contract. In what would become the biggest risk of his career, Mayweather exercised an opt-out clause in his promotional contract, paying $750,000 to be on his own.

Once paid hundreds of thousands of dollars per fight, by knowing his worth and taking control of his destiny, Mayweather was able to make $8 million in his next fight later that same year; a number that only someone who had total ownership of himself could make.

He would go onto eclipse that number multiple times over every other fight thereafter.

Betting on yourself means believing in yourself.

Betting is never a good way to generate income, mainly because most a lot of the variables will be outside of your control. Betting on yourself is different because you--what you do, when you do it, why you choose to do it and how you react to outside circumstances--is all within your control.

You are the only sure bet you can make in life. So when the time comes, you shouldn't hold back or be afraid to go all in on yourself.

Like Mayweather, you can't always expect people to be on your side, understanding or agreeable. These traits will help you get through that confrontation, should it ever arise. Mayweather isn't well liked, but he's an intelligent fighter, as evidenced by his defense.

Did you watch the Mayweather vs. McGregor fight? Who did you have favored? And are you surprised at the outcome? Let me know in the comments below or on Twitter.