Warren Buffett once stood before a room of Columbia University students and made them an offer. Improve your communication skills, he said, and I will pay you an extra 50 percent. The Oracle of Omaha wasn’t talking about mastering balance sheets or options pricing. He meant the ability to stand up, speak clearly, and get ideas across without losing the audience. That message, delivered years ago, still echoes. Fortune reported this week that Buffett views communication as the skill schools under-emphasize most. “If you can’t communicate and talk to other people and get across your ideas, you’re giving up your potential,” he said in a 2013 interview. Short. Direct. Unforgettable. Buffett’s own path started in fear. In high school and at Columbia he arranged classes to dodge any requirement to speak publicly. The thought made him physically ill. He once wrote a check for a Dale Carnegie course in New York, then stopped payment before it began. But at 21, launching his securities career in Omaha, reality hit.…