This stock is an excellent example of how investing in quality businesses can produce stellar long-term returns.The stock market is one of the greatest wealth creators out there. Over the long run, the S&P 500 index has returned about 10% annually during the past century, rewarding patient investors who take a buy-and-hold approach to investing.Some companies outperform the S&P 500 over extended periods. These companies have strong business models and capital and risk management, which allows them to produc ...