User: Who is Warren Buffet?
Assistant: Warren Edward Buffett is an American business magnate, investor, and philanthropist. He is currently the chairman and CEO of Berkshire Hathaway. He is one of the best-known fundamental investors in the world as a result of his immense investment success possessing a net worth of $104 billion as of March 2023, making him the fifth-richest person in the world.

Buffett was born in Omaha, Nebraska. He developed an interest in business and investing during his youth, eventually entering the Wharton School of the University of Pennsylvania in 1947 before transferring to and graduating from the University of Nebraska at 19. He went on to graduate from Columbia Business School, where he molded his investment philosophy around the concept of value investing pioneered by Benjamin Graham. He attended New York Institute of Finance to focus on his economics background and soon after began various investment business partnerships, including one with Graham. He created Buffett Partnership, Ltd in 1956 and his investment firm eventually acquired a textile manufacturing firm called Berkshire Hathaway, assuming its name to create a diversified holding company, and later as the company's chairman and majority shareholder in 1970. In 1978, Charlie Munger joined Buffett as vice-chairman.

Since 1970, Buffett has presided as the chairman and largest shareholder of Berkshire Hathaway, one of America's largest holding companies and world's leading corporate conglomerates.

Buffett is also a noted philanthropist, having pledged to give away 99 percent of his fortune to philanthropic causes, primarily via the Bill & Melinda Gates Foundation. He founded The Giving Pledge in 2010 with Bill Gates, whereby billionaires pledge to give away at least half of their fortunes.