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" "The danger is in acting on what you believe satisfies the customer. You will inevitably make wrong assumptions. Leadership should not even try to guess at the answers; it should always go to customers in a systematic quest for those answers.
Peter Ferdinand Drucker (November 19 1909 – November 11 2005) was an Austrian-born American writer, management consultant and university professor. In 1943 he became a naturalized citizen of the United States. He taught at New York University and Claremont Graduate University respectively.
Biography information from Wikiquote
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