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Peter F. Drucker 1909–2005
Austrian-born American management consultant, educator, and writer 

  1. Knowledge is the only meaningful resource today. The traditional ‘factors of production’—land (i.e. natural resources), labour and capital—have not disappeared. But they have become secondary.
    Post-Capitalist Society (1993)
  2. The most important thing in communication is to hear what isn’t being said.
    interview, Bill Moyers A World of Ideas (1989)