Warren Buffett announced his retirement as CEO of Berkshire Hathaway at the annual shareholders' meeting, marking a historic moment for the company he built into a $1 trillion powerhouse. As he steps down at 94, Buffett's principles of trust, integrity, and long-term investing remain vital, especially amid a shift towards passive investing that threatens the sustainability of quality companies. His legacy emphasizes the importance of capitalism, free markets, and the role of government in addressing societal challenges.