In May, Warren Buffett announced that he plans to step down from his role as CEO of Berkshire Hathaway (BRK.A -1.25%) (BRK.B -1.35%) at the end of 2025. It will cap off a spectacular run of success that dates back to 1965 -- though his journey isn't over completely, because he will continue to serve as chairman of Berkshire's board.Had you invested $1,000 in Berkshire stock when Buffett took the helm 60 years ago and held on for that entire time, you'd have been sitting on shares worth an eye-popping$44.7 ...