9 quotes from millionaires and billionaires that will change the way you think

If you want to become a millionaire — or, dream big, a billionaire — start thinking like one.

And what better way to get a glimpse inside successful people's heads that to study the wisdom they've already imparted?

For a dose of inspiration, CNBC rounded up nine quotes from self-made millionaires and billionaires that will change the way you think about money, success and innovation.

"I can understand wanting to have millions of dollars, there's a certain freedom, meaningful freedom, that comes with that. But once you get much beyond that, I have to tell you, it's the same hamburger." —Bill Gates, co-founder of Microsoft, on why becoming a billionaire is overrated

"If millennials don't buy a home, their chances of actually having any wealth in this country are little to none. The average homeowner to this day is 38 times wealthier than a renter." — David Bach , author of "The Automatic Millionaire"

"We don't build services to make money; we make money to build better services." —Mark Zuckerberg, founder and CEO of Facebook

"The best investment you will ever make is in yourself." — Grant Cardone , entrepreneur and author of "Be Obsessed or Be Average"

"It's pretty easy to get well-to-do slowly. But it's not easy to get rich quick." — Warren Buffett , investor and founder of Berkshire Hathaway

On the secret to success:

"The people who care less about what other people think about them tend to have a better life. It's just liberating." — Gary Vaynerchuk , founder and CEO of VaynerMedia

"Failure is an option here. If things are not failing, you are not innovating enough." —Elon Musk, CEO of Tesla and Space-X

On ditching a traditional lifestyle and living entirely out of Airbnbs:

"I really like to focus on my own creativity. I like the freedom in not having that many things and not having a real place to live, a real address, because I think it makes me feel more creative." — James Altucher , entrepreneur, investor and writer

On building a business with a small budget:

"I think frugality drives innovation, just like other constraints do. One of the only ways to get out of a tight box is to invent your way out." —Jeff Bezos, founder and CEO of Amazon

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