When to leave a job, how to negotiate a raise, and how to write an email are some of the important lessons that everyone learns.

Mark Cuban said his first job taught him the art of sales. The billionaire told the School of Hard Knocks that if he were to go back in time and tell himself something, it would be to stay on the path he was on.

Cuban said he would do the same thing again. You can start a business if you learn how to sell.

Cuban has been outspoken about his rise to fame and fortune. The owner of the Dallas Mavericks said in an episode of ABC's "Shark Tank" that he was encouraged by his mother to learn how to work at a mill for job security when he was a child.

Baseball cards, stamps and coins were sold by Cuban. He said on the TikTok that selling isn't about convincing, it's about helping.

He said that when you understand what people need, you can help them. Good things happen and close deals are how you create companies.

Cuban started and sold his systems integration computer company, MicroSolutions, for $6 million after less than a decade in business.

Cuban has said before that he believes in the effectiveness of his sales philosophy. He said in an interview that sales are more about helping customers access products and services than about who can talk the fastest.

He said that if you can't show them why your product is better for them and their life than the other options out there or what they were doing before, you are not going to have a company.

Studies suggest that a job in sales is a good place to start a business. According to a survey by Heidrick & Struggles, 15% of CEOs from the top 100 companies got their start in sales.

45 people with a net worth of $11 million to $3 billion were surveyed for the book "The Wealth Elite." More than half of them said sales experience was a significant factor in their financial success.

Career insurance is equivalent to a sales background, according to Cuban. He said on the radio show that he wasn't afraid of losing his money for that reason. He knows he can use his skills to build wealth again.

Cuban said that he would get jobs as a bartender at night and a sales person during the day. Is it possible to become a multimillionaire again? I have no doubts.

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Gen Z prefers TikTok and YouTube to financial advisors, but the advice they are getting may be completely inappropriate.

Sometimes my deals are just to help someone or send a message.

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