BILL GATES USED TO PACK EVERY MINUTE OF HIS CALENDAR Then Warren Buffett showed him his own. What Gates took from it reshaped how he thinks about time: "I had every minute packed and I thought that was the only way you could do things." Buffett does the opposite. He leaves blank space to read and think, and treats that as a higher priority than a normal CEO would. "It's not a proxy of your seriousness that you filled every minute in your schedule." Gates can buy almost anything. But as he put it: "I can't buy time. It's the most precious thing you can have."