If there is any one secret of effectiveness, it is concentration. Effective executives do first things first and they do one thing at a time.
Peter DruckerFollow effective action with quiet reflection. From the quiet reflection will come even more effective action.
Peter DruckerManagement and entrepreneurship are only two different dimensions of the same task. An entrepreneur who does not learn how to manage will not last long. A management that does not learn to innovate will not last long.
Peter Drucker