What you need is a fundamental humility - the belief that you can learn from anyone.

Because these firms listened to their customers, invested aggressively in new technologies that would provide their customers more and better products of the sort they wanted, and because they carefully studied market trends and systematically allocated investment capital to innovations that promised the best returns, they lost their positions of leadership.

Because if the decisions you make about where you invest your blood, sweat, and tears are not consistent with the person you aspire to be, you’ll never become that person.

But actually theory is very practical. Gravity is a theory, for example. It allows you to predict that if you step off a cliff you will fall; you don't have to collect data on that.

Think about the metric by which your life will be judged, and make a resolution to live every day so that in the end, your life will be judged a success.

In a large successful company where your power base as CEO isn't all that secure, it's hard for a CEO to pursue a truly disruptive strategy.

Because of the disruption phenomenon - technological progress outstripping the ability of customers to utilize it - the general tendency is for the money to migrate toward the subsystems.