Warren Buffett sold chewing gum door-to-door at the tender age of six

Richard Branson founded a magazine at just 16

Lived in the same warehouse where he rented his office

Failed the college Entrance exam twice

Tucker grew up milking cows in rural Illinois. She was the youngest of four girls and became the first in her family to go to college

Drew Houston came up with the idea for Dropbox on a bus ride during college, when he needed to access some files he left on a USB drive somewhere else. He began building Dropbox for his own personal use, then figured it might solve a problem for other people too.

Patrick and his brother John rode their bikes to their Palo Alto office every day, in part because they were too cheap to buy a car.

His first business endeavors began while being a student. With the help of some professors, Son invented an electronic translator that he sold to Sharp Corporation for $1.7 million. He made another $1.5 million by importing used video game machines from Japan, on credit, and installing them in dormitories and restaurants.

Mulcahy began her Xerox career as a field sales representative in 1976 and was named CEO of Xerox on August 1, 2001, and chairwoman on January 1, 2002

David Zalik was a math prodigy and founded his first company, a PC assembler and refurbisher, at 14.

Kevin Systrom worked at Boston Beat, a vinyl-record store in Boston, while he was in high school.

After the economy suffered so greatly in 2008, Starbucks founder Howard Schultz began to do what almost every other CEO in America was doing—cutting expenses and getting rid of nonperforming locations. He then did something that most CEOs did not do: he traveled all over the country to meet with Starbucks patrons. Long after the average worker had gone home, billionaire Schultz was visiting...

Perkins spent three months living on the floor of her brother's San Francisco apartment while taking trips down to Silicon Valley to meet with investors. During the day, she'd use the free WiFi in the mall's food court.

Salesforce famously launched in an apartment that Benioff rented, and he put up some of his own money to buy the company’s first computers.

Benjamin Graham is the father of investment analysts everywhere, originally sparking the debate for a credential to professionalize the industry which led to the CFA Charter

In March 2016, Ferriss flash funded 145 school projects posted on DonorsChoose.org in coordination with Stephen Colbert

True to his own DNA, Gary never raised startup funding and began the business in a conference room at Buddy Media.

Gary’s life ambition is the pursuit of buying the New York Jets.

Throughout his early life in middle school and high school, Welch found work in the summers as a golf caddie, newspaper delivery boy, shoe salesman, and drill press operator.

Welch joined General Electric in 1960 as a junior chemical engineer and In 1981, he became GE's youngest chairman and CEO