Peter Drucker

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Peter Ferdinand Drucker (November 19, 1909 – November 11, 2005) was an Austria-born American writer.

Sourced quotes

  • ”Management has authority only as long as it performs.”[1]
Simple: Management has authority only when it does some work.


  1. MANAGEMENT: Tasks, Responsibilities, Practices (1973). Part 1, Chapter 23, pg.301

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