Michael Bloomberg vs. Warren Buffett

In 2018, Bloomberg pledged $1.8 billion to Johns Hopkins University, his undergraduate alma mater, adding $1.5 billion he had already given the school. As a teenager, Bloomberg worked at an electronics company in Cambridge, Massachusetts.

Buffett still lives in the same Omaha, Nebraska, home he purchased in 1958 for $31,500. Buffett was rejected from Harvard Business School; he got a master's in economics from Columbia University instead.