Greatness is not a function of circumstance. Greatness, it turns out, is largely a matter of conscious choice, and discipline.

The start of the New Year is a perfect time to start a stop doing list and to make this the cornerstone of your New Year resolutions, be it for your company, your family or yourself. It also is a perfect time to clarify your three circles, mirroring at a personal level the three questions... 1) What are you deeply passionate about? 2) What are you are genetically encoded for - what activities do you feel just "made to do"? 3) What makes economic sense - what can you make a living at?

The greatest leaders build organizations that, in the end, don't need them.

A visionary company doesn't simply balance between idealism and profitability: it seeks to be highly idealistic and highly profitable.

Faith in the endgame helps you live through the months or years of buildup.

Level 5 leaders are differentiated from other levels of leaders in that they have a wonderful blend of personal humility combined with extraordinary professional will. Understand that they are very ambitious; but their ambition, first and foremost, is for the company's success. They realize that the most important step they must make to become a Level 5 leader is to subjugate their ego to the company's performance. When asked for interviews, these leaders will agree only if it's about the company and not about them.

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.