"The crucial things in economics are about as mathematically intractable as a love letter or a Christmas celebration. They reside in moral and spiritual forces, psychological reactions, opinions which are beyond the reach of curves and equations. What matters ultimately in economics is incalculable and unpredictable."
"Man, in the words of the Gospel, does not live by bread alone. Let us beware of that caricature of an economist who, watching people cheerfully disporting themselves in their suburban allotments, thinks he has said everything there is to say when he observes that this is not a rational way of producing vegetables--forgetting that it may be an eminently rational way of producing happiness, which alone matters in the last resort."
- Wilhelm Roepke
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