We tell ourselves that skill is the precious resource and effort is the commodity. It’s the other way around. Effort can trump ability—legs, in Saxe’s formulation, can overpower arms—because relentless effort is in fact something rarer than the ability to engage in some finely tuned act of motor coördination.
— Annals of Innovation: How David Beats Goliath: Reporting & Essays: The New Yorker