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After retiring in 1901 at the age of 66 as the world's richest man, Andrew Carnegie wanted to become a philanthropist, a person who gives money to good causes. He believed in the "Gospel of Wealth," which meant thatwealthy people were morally obligated to give their money back to others in society.
Jeffrey Preston Bezos is an American internet entrepreneur, industrialist, media proprietor, and investor. He is best known as the founder, CEO, and president of the multi-national technology company Amazon.