Mark Cuban

Sweat equity is the most valuable equity there is.

It is called working your ass off. The difference is what you are willing to sacrifice. For every writer who wants balance in their life, there is a guy like me who gives up a lot to make their dreams come true. There is always going to be someone out there that knows they have to compensate for maybe having less talent with harder work and preparation.

If you're looking where everybody else is looking, you're looking in the wrong spot.

Every job I took was really me getting paid to learn about a new industry.

Find something you love to do. If you don't make money at it, at least you love going to work.

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

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.

Forget about finding your passion. Instead, focus on finding big problems.

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

The only thing in your control is effort. That's all, and that's everything.

Never follow your dreams. Follow your effort. It's not about what you can dream of. That's easy. It's about whether or not it's important enough to you to do the work to be ready to be successful in that business.

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. All that matters in business is that you get it right once. Then everyone can tell you how lucky you are.

Always look for the fool in the deal. If you don't find one, it's you.