Learn about the world's inequities
"I also have one big regret: When I left school, I knew little about the world's worst inequities. Took me decades to learn," he said in a 2017 tweet.
Hire people with different areas of expertise
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"When I was young, I always hired thinking our organization would grow a lot. But the notion that these intelligences were as specialized as they are—I was so wrong—I thought, partly because of myself, or misperceptions of myself, that, 'Hey, I can learn sales, what is that?' You know, profit/loss—you take the sales, you subtract the costs. Do you need to go to business school? I don't think so. I didn't have enough respect for different, deep knowledge, I didn't have enough respect for good management—what really good management is," Gates said in a 2017 podcast interview with Reid Hoffman. Gates has, obviously, had a lot of successes—here are 14 ways the world would be different without him.
8 Pieces of Advice Bill Gates Would Give His Younger Self, Source:https://www.rd.com/advice/advice-bill-gates-would-give-his-younger-self/