A visionary company doesn't simply balance between idealism and profitability: it seeks to be highly idealistic and highly profitable. A visionary company doesn't simply balance between preserving a tightly held core ideology and stimulating vigorous change and movement; it does both to an extreme.

I don't know where we should take this company, but I do know that if I start with the right people, ask them the right questions, and engage them in vigorous debate, we will find a way to make this company great.

You must ask, "What do we mean by great results?" Your goals don't have to be quantifiable, but they do have to be describable. Some leaders try to insist, "The only acceptable goals are measurable," but that's actually an undisciplined statement. Lots of goals-beauty, quality, life change, love-are worthy but not quantifiable. But you do have to be able to tell if you're making progress.

Companies that change best over time know first and foremost what should not change.

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

Consider the idea that charisma can be as much a liability as an asset. Your strength of personality can sow the seeds of problems, when people filter the brutal facts from you.

In an ironic twist, I now see Good to Great not as a sequel to Built to Last, but more of a prequel. Good to Great is about how to turn a good organization into one that produces sustained great results. Built to Last is about how you take a company with great results and turn it into an enduring great company of iconic stature.