Microsoft's cofounder Bill Gates lacked motivation when he was at school and was 'lazy' at math. "Early on in math, I was kind of lazy," 67-year-old Gates said. "And a teacher in eighth grade said, you know: 'How come you're so lazy? Gates explained that the teacher would give him books to read and push him to do better. However, Gates has encouraged students to stick out the full four years of college to get the best out of their education.

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Persons: Bill Gates, Sal Khan –, Gates, we're, Paul Allen Organizations: Harvard University, Microsoft, Morning, Khan, –