Berkshire Hathaway (NYSE: BRK.A)(NYSE: BRK.B) owns shares of more than 40 different companies in its portfolio. After all, Warren Buffett and his team tend to invest in industry leaders with excellent cash flow and durable competitive advantages.

Warren Buffett has created incredible wealth for shareholders of Berkshire Hathaway. It's been very inspiring to individual investors that he did it -- as he alluded to in his 1988 letter to shareholders -- by focusing on investing in quality companies and holding for the long term, without being fazed by occasional market volatility.

According to Warren Buffett, true leadership isn’t about all that—it’s about setting the tone, staying consistent, and leading with purpose. Buffett, a master of decision-making and long-term vision,