To 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 DruckerA person can perform only from strength. One cannot build performance on weakness, let alone on something one cannot do at all.
Peter DruckerPlanning is actually incompatible with an entrepreneurial society and economy. Planning is the kiss of death of entrepreneurship.
Peter DruckerAny time I have seen someone accomplishing something magnificent, they have been a monomaniac with a mission. A single-minded individual with a passion.
Peter Drucker