Stick to the plan of long-term investing during market downturns. Keep buying shares of great companies and exchange-traded funds as the market declines, knowing that if you measure your returns in decades, you'll look back and know you bought at a discount.

Warren Buffett is known as one of the most successful investors of all time. His Berkshire Hathaway investment vehicle has handily trounced the returns of the S&P 500 over the long run, and

The 94-year-old Oracle of Omaha was finally able to give out the big prize after relaxing the rules multiple times since the competition's inception in 2016.