The quote might have been genuine, but Gates said it an joking manor - e.g. "it was like I didn't have a day off in 40 years". Or Gates wanted to be viewed as

The quote might have been genuine, but Gates said it an joking manor - e.g. "it was like I didn't have a day off in 40 years". Or Gates wanted to be viewed as a work-a-holic and lied. I'm fairly sure it's not literally true.