Peter Drucker Quotes About Assumption

Quotes about: Assumption

• The correct assumption is that what individuals have learned by age twenty-one will begin to become obsolete five to ten years later and will have to be replaced-or at least refurbished-by new learning, new skills, new knowledge.

  Peter Drucker

  Years, Skills, Age

  Peter Drucker (2014). “Innovation and Entrepreneurship”, p.280, Routledge

• Erroneous assumptions can be disastrous.

  Peter Drucker

  Thinking, Decision, Assumption

• Balance Sheets are meaningless. Our accounting systems are still based on the assumption that 80% of costs are manual labor.

  Peter Drucker

  Balance, Cost, Assumption

• The most probable assumption is that no currently working 'business theory' will be valid 10 years hence.

  Peter Drucker

  Years, Assumption, Theory

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