You must maintain unwavering faith that you can and will prevail in the end, regardless of the difficulties, AND at the same time, have the discipline to confront the most brutal facts of your current reality, whatever they might be.

First figure out your partners, then figure out what ideas to pursue. The most important thing isn't the market you target, the product you develop or the financing, but the founding team.

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.

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."

Perhaps your quest to be part of building something great will not fall in your business life. But find it somewhere. If not in corporate life, then perhaps in making your church great. If not there, then perhaps a nonprofit, or a community organization, or a class you teach. Get involved in something that you care so much about that you want to make it the greatest it can possibly be, not because of what you will get, but just because it can be done.

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

Great companies foster a productive tension between continuity and change.