Influential investor Warren Buffett has been doling out investment advice since the beginning of his career. A staunch advocate of value investing in large-cap, well-managed equities, Buffett once said, "If you don't find a way to make money while you sleep, you will work until you die." Investing in high-quality dividend stocks can help you generate substantial passive income, creating a sturdy cushion for retirement as well as side earnings. Companies categorized as dividend aristocrats have a