(CNN) -- In a recent Fortune magazine essay, Warren Buffett -- one of the world's wealthiest people -- explains why women are key to America's prosperity. CNN's Poppy Harlow sat down with the Berkshire Hathaway chairman and CEO to talk about girls education, his sisters, his family and how, as he says, "If I had been born a female, I would have been very unhappy about the Constitution." Watch the full interview in Part 1 and 2 of the videos. More: Jennifer Buffett -- Make schools safe for girls everywhere . More: CNN's "Girl Rising" Photos: The girls' stories from "Girl Rising" How to help .
Billionaire Warrent Buffett talks to CNN's Poppy Harlow about girls education . More about CNN's Girl Rising project .