Shares of Berkshire Hathaway Inc. Cl B inched 0.24% higher to $478.56 Tuesday, on what proved to be an all-around great trading session for the stock market, with the S&P 500 Index rising 0.57% to 6,021.

Billionaire investor Warren Buffett thinks he’s pretty lucky — and not just because of his whopping $150 billion net worth.

Warren Buffett bought Berkshire Hathaway (NYSE: BRK.A)(NYSE: BRK.B) about 60 years ago. Given his impressive track record, I steadily study Buffett's mentality to improve my own investing skills. My office is littered with highlighted and underlined copies of his annual letters to shareholders as well as worn-out books on Buffett.