"[Management] has authority only as long as..." - Quote by Peter Drucker

“The enterprise can fulfill its human and social functions only if it prospers as a business.”

“A superior who works on his own development sets an almost irresistible example.”

“Management is doing things right; leadership is doing the right things.”

“I always invest in companies an idiot could run, because one day one will.”

“Not to innovate is the single largest reason for the decline of existing organizations. Not to know how to manage is the single largest reason for the failure of new ventures.”

“In some ways, I saw the garden as a metaphor for certain aspects of my life. A leader must also tend his garden; he, too, plants seeds, and then watches, cultivates, and harvests the results. Like the gardener, a leader must take responsibility for what he cultivates; he must mind his work, try to repel enemies, preserve what can be preserved, and eliminate what cannot succeed.”

“I love man-kind, but I hate the institutions of the dead unkind. Men execute nothing so faithfully as the wills of the dead, to the last codicil and letter. They rule this world, and the living are but their executors. Such foundation too have our lectures and our sermons, commonly.”

“Shall remain! Hear you this Triton of the minnows? Mark you His absolute 'shall'?”

“Quacks are a part of our culture, and we all fall prey to them. Who among us can say, for sure, that even our own personal physicians are honest and competent?”