A dream is a feeling that sticks - and propels.

In a world of constant change, the fundamentals are more important than ever.

Building a visionary company requires one percent vision and 99 percent alignment.

The x factor of a great leader is humility combined with will.

Throw leaders into an extreme environment, and it will separate the stark differences between greatness and mediocrity.

For no matter what we achieve, if we don't spend the vast majority of our time with people we love and respect, we cannot possibly have a great life. But if we spend the vast majority of our time with people we love and respect - people we really enjoy being on the bus with and who will never disappoint us - then we will almost certainly have a great life, no matter where the bus goes. The people we interviewed from the good-to-great companies clearly loved what they did, largely because they loved who they did it with.

You absolutely must have the discipline not to hire until you find the right people.