Collins discovered that the most successful companies are led by Level 5 leaders, who combine personal humility with professional will. These leaders are not egocentric; instead, they focus on the success of their company and its people. Their unique blend of modesty and determination creates an environment where greatness can flourish.

This idea revolves around the intersection of three crucial circles: what you are deeply passionate about, what you can be the best in the world at, and what drives your economic engine. Companies that achieve greatness have a clear understanding of these three elements and align their strategies accordingly, ensuring they stay focused and effective.

Great companies foster a culture where disciplined people engage in disciplined thought and take disciplined action. This culture of discipline, combined with an entrepreneurial spirit, leads to exceptional performance. It ensures that everyone in the organization is aligned with the company's goals and works consistently towards achieving them.