University of Berkshire Hathaway: 30 Years of Lessons Learned from Warren Buffett & Charlie Munger at the Annual Shareholders Meeting

by Daniel Pecaut

Buffett added that this false precision only arises with very high IQs. You only need an IQ of 120 or so to be a good investor. In fact, he suggested, if you have a high IQ, keep your 120 and sell the rest. Higher math can lead you astray.