All companies have a culture, some companies have discipline, but few companies have a culture of discipline. When you have disciplined people, you don't need hierarchy. When you have disciplined thought, you don't need bureaucracy. When you have disciplined action, you don' t need excessive controls. When you combine a culture of discipline with an ethic of entrepreneurship, you get the magical alchemy of great performance.

The only way to remain great is to keep on applying the fundamental principles that made you great.

Comparison, a great teacher once told me, is the cardinal sin of modern life. It traps us in a game that we can't win. Once we define ourselves in terms of others, we lose the freedom to shape our own lives.

Whether you prevail or fail depends more on what you do to yourself than on what the world does to you.

Genuine confidence is what launches you out of bed in the morning, and through your day with a spring in your step.

Those who build great companies understand that the ultimate throttle on growth for any great company is not markets, or technology, or competition, or products. It is one thing above all others: the ability to get and keep enough of the right people.

There is a sense of exhilaration that comes from facing head-on the hard truths and saying, "We will never give up. We will never capitulate. It might take a long time, but we will find a way to prevail."