What we call a financial crisis is really at its core a crisis of management, and not just a crisis of management, but a crisis of management culture. ...In other words, what you had is a detachment of people who know the business from people who are running the business.

Learning is not doing; it is reflecting on doing.

Management and leadership are not separate spheres. The two skills work together in the larger realm of “communityship.

We're all flawed, but basically, effective managers are people whose flaws are not fatal under the circumstances. Maybe the best managers are simply ordinary, healthy people who aren't too screwed up.

What I have against M.B.A.s is the assumption that you come out of a two-year program probably never having been a manager - at least for full-time younger people M.B.A. programs - and assume you are ready to manage.

An unsuccessful manager blames failure on his obligations; the effective manager turns them to his own advantage. A speech is a chance to lobby...a visit to an important customer a chance to extract trade information.

Strategy-making is an immensely complex process involving the most sophisticated, subtle, and at times subconscious of human cognitive and social processes.