DON'T MISS: The ultimate guide to becoming a master communicator and public speaker"[The class] certainly had the biggest impact in terms of my subsequent success," Buffett told Segal. Professionals can still benefit from the lessons Buffett used in that public speaking course, Dale Carnegie CEO Joe Hart told CNBC in 2019. Don't spend ten minutes or ten hours preparing a talk: Spend ten weeks or ten months. Refer to brief notes, Carnegie suggested, because reading from a script can keep you from being present. Take CNBC's new online course Become an Effective Communicator: Master Public Speaking.

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Persons: Warren Buffett, Buffett wasn't, Gillian Zoe Segal, Buffett, Segal, Dale Carnegie, Joe Hart, Carnegie, Hart, that's, Jot Organizations: Berkshire Hathaway, CHI, Center, CNBC, Columbia Business School, Dale Carnegie Training, Win, Carnegie Locations: Omaha , Nebraska