"Working with passion is an engine that is unbelievable. A person with drive and passion does three times the job of another person. But it is not so much the quantity of the job; that is not the point. The point is that they draw crowds; they have followers; they push, and lead, and so achieve much more."
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Source : Dov Seidman (2011). “How: Why How We Do Anything Means Everything”, p.295, John Wiley & Sons