Warren Buffett, chairman and CEO of Berkshire Hathaway, has reiterated his investment philosophy amid ongoing market volatility and concerns over US economic growth. Buffett advises investors to view stocks as businesses and focus on their long-term performance rather than short-term market fluctuations. He emphasizes the importance of discipline, cautioning investors to be prepared for stock prices to potentially decline by 50% or more. Buffett's approach includes the fundamental rule of never losing money, underscoring the need for patience and resilience during market swings. Meanwhile, the S&P 500 index remains overvalued by multiple metrics, with valuations around 20 times earnings and the Warren Buffett Indicator at its third highest level historically. Analysts warn that the S&P 500 could experience a further decline of at least 15%, driven by risks such as a potential recession, Federal Reserve policies, weak corporate earnings, geopolitical tensions, and stretched price-to-earnings ratios. Despite a roughly 10% drop in 2025, the market is still considered expensive relative to historical averages. Buffett has also offered guidance for first-time homebuyers through Berkshire Hathaway, reinforcing his broader financial advice. Additionally, Buffett has praised investor Walter Schloss for his investment principles, highlighting the importance of discipline and sound management in investment success.