You can teach all sorts of things that improve the practice of management with people who are managers. What you cannot do is teach management to somebody who is not a manager, the way you cannot teach surgery to somebody whose not a surgeon.
Henry MintzbergCorporations are economic entities, to be sure, but they are also social institutions that must justify their existence by their overall contribution to society.
Henry MintzbergWhile hard data may inform the intellect, it is largely soft data that generates wisdom.
Henry Mintzberg