I no longer think that learning how to manage people, especially subordinates, is the most important for executives to learn. I am teaching above all else, how to manage oneself.
Peter DruckerWhat is the major problem? It is fundamentally the confusion between effectiveness and efficiency that stands between doing the right things and doing things right. There is surely nothing quite so useless as doing with great efficiency what should not be done at all.
Peter DruckerInnovation requires us to systematically identify changes that have already occurred in a business - in demographics, in values, in technology or science - and then to look at them as opportunities. It also requires something that is most difficult for existing companies to do: to abandon rather than defend yesterday.
Peter Drucker