Updated 11:52 AM EDT, Wed June 23, 2021
They call him the "Oracle of Omaha."
For decades, the world has looked to Warren Buffett for investment advice and leaned on his legendary business acumen.
His reputation is formidable, as is his wealth — this year, Forbes magazine ranked the folksy Nebraskan as the sixth-richest person in the world, with a net worth of over $100 billion.
Buffett, who turned 90 years old last year, built his fortune as chairman of Berkshire Hathaway, a holding company that has stake in some of the world's most valuable companies. Berkshire's holdings include GEICO, Kraft Heinz, Apple, Coca-Cola, American Express and Fruit of the Loom.
Buffett's wisdom has become so cherished that some people donate thousands of dollars to charity just to have lunch with him. In 2019, a tech entrepreneur paid more than $4.5 million for the honor.
Buffett has also given billions of dollars to philanthropic causes. In 2006, he pledged to give away almost all of his fortune to charity.