Tiger Woods has one regret, and it's not the 2009 cheating scandal that led to the end of his marriage to Elin Nordegren. The 40-year-old professional golfer revealed the one thing that he wishes he could've changed, during an hour-long interview with Charlie Rose on Thursday. "The only regret I have in life is not spending another year at Stanford [University]," Woods told Rose. "I wish I would've had one more year." WATCH: 'Cheater' Banner Flies Over Tiger Woods During U.S. Open.