If you want to build a great enterprise, you have to have the courage to dream great dreams. If you dream small dreams, you may succeed in building something small. For many people, that is enough. But if you want to achieve widespread impact and lasting value, be bold.

This is not his job, I thought, it's his passion.

To be an enduring, great company, you have to build a mechanism for preventing or solving problems that will long outlast any one individual leader.