Warren Buffett paid tribute to fellow investing legend Jack Bogle, who died Wednesday at the age of 89. "Jack did more for American investors as a whole than any individual I've known," Buffett told CNBC's Becky Quick. "A lot of Wall Street is devoted to charging a lot for nothing. He charged nothing to accomplish a huge amount." Bogle helped bring investing to the masses through his creation of the index fund and founding of the no-nonsense, low-fee investing firm Vanguard Group. He preached a philosophy of steady investing and avoidance of market timing.