The experience of the past lives little doubt that every economic system must sooner or later rely upon some form of the profit motive to stir individuals and groups to productivity. Substitutes like slavery, police supervision, or ideological enthusiasm prove too unproductive, too expensive, or too transient.
Will DurantCivilization is social order promoting cultural creation. Four elements constitute it: economic provision, political organization, moral tradition, and the pursuit of knowledge and the arts. It begins where chaos and insecurity end. For when fear is overcome, curiosity and constructiveness are free, and man passes by natural impulse towards the understanding and embellishment of life.
Will DurantKnowledge that does not generate achievement is a pale and bloodless thing, unworthy of mankind.
Will Durant