During periods of discontinuous, abrupt change, the essence of adaptation involves a keen sensitivity to what should be abandoned - not what should be changed or introduced. A willingness to depart from the familiar has distinct survival value.
Peter DruckerYou must accept that if the computer is a tool, it is the job of tool user to know what to use it for.
Peter DruckerTo be effective, every knowledge worker, and especially every executive, therefore needs to dispose of time in fairly large chunks. To have small dribs and drabs of time at his disposal will not be sufficient even if the total is an impressive number of hours.
Peter Drucker