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While you can think in terms of efficiency in dealing with time, a principle-centered person thinks in terms of effectiveness in dealing with people.

Stephen R. Covey (2016). “The 7 Habits of Highly Effective People: Powerful Lessons in Personal Change Interactive Edition”, p.197, Mango Media Inc.
While you can think in terms of efficiency in dealing with time, a principle-centered person thinks in terms of effectiveness in dealing with people.