Your beliefs about money can play a huge role in whether or not you finish rich.

So why not look to those who have been there, done that for inspiration?

Here are nine quotes about money from self-made billionaires that will shift your perspective on business, investing, and success.

From investor Warren Buffett to tech mogul Jeff Bezos, here’s what some of the world’s richest men and women have to say about money:

‘I will tell you how to become rich. Close the doors. Be fearful when others are greedy. Be greedy when others are fearful.’ — Warren Buffett, chairman and CEO of Berkshire Hathaway

‘There are very few people in the world who get to build a business like this. I think trading that for some short-term gain isn’t very interesting.’ — Evan Spiegel, CEO of Snap Inc., on not selling to Facebook

‘The reason I’ve been able to be so financially successful is my focus has never, ever for one minute been money.’ –– Oprah Winfrey, business magnate

‘If we were motivated by money, we would have sold the company a long time ago and ended up on a beach.’ — Larry Page, Google cofounder and CEO of Alphabet Inc.

‘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, CEO of Amazon

‘You always hear the phrase, money doesn’t buy you happiness. But I always in the back of my mind figured a lot of money will buy you a little bit of happiness. But it’s not really true.’ — Sergey Brin, Google cofounder and president of Alphabet Inc.

‘Today, making money is very simple. But making sustainable money while being responsible to the society and improving the world is very difficult.’ — Jack Ma, executive chairman of Alibaba Group

‘Money makes you more of who you already are.’ — Sara Blakely, founder of Spanx

‘I believe that you have to understand the economics of a business before you have a strategy, and you have to understand your strategy before you have a structure. If you get these in the wrong order, you will probably fail.’ — Michael Dell, CEO of Dell Inc.


This article first appeared on Business Insider Australia, Australia’s most popular business news website. Read the original article. Follow Business Insider on Facebook or Twitter.