In 1901, J.P. Morgan wanted to buy the Carnegie Steel Company from its founder, Andrew Carnegie.

Carnegie was 65 years old and considering retirement. As Harold C. Livesay recounts in his book Andrew Carnegie and the Rise of Big Business (Little, Brown, 1975), when Carnegie finally decided he was ready to sell, he jotted down his estimate of his company’s worth in pencil: $480 million. Carnegie had the sheet of paper delivered to Morgan, who took one look and said, “I accept this price.”