Grandpa Buffett shared his Thanksgiving farewell letter today, reflecting on life: 'The Last Letter' 'I outperformed the stock market, but I can't outrun time.' 'Choose your role models carefully, then emulate them. You can never be perfect, but you can always be better.' 'Greatness isn't about wealth, fame, or power. When you help others, you're helping the world.' 'A janitor and a chairman are both human.' The legendary investor of our time, slowly taking his bow.