Twenty-five accomplished people told Fortune about the best advice they'd ever received and ultimately influenced their lives. I've selected a handful of these to share with you, and I'm passing along the advice of people like Tina Fey and Craigslist founder Craig Newmark as May Must Haves. After reading what they had to say about the best advice they've received, let me know what's the best advice you've ever received in the comments.
May Must Have Advice
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