Work as a calling, wealth as evidence of grace, spending as a sin: the psychological engine Max Weber thought helped set capitalism in motion.
Hard work and disciplined saving are usually treated as plain common sense, values that need no explanation beyond “that’s just prudent.” Weber’s The Protestant Ethic and the Spirit of Capitalism (1905) argued that instinct has a specific historical origin. The Reformation, especially in its Calvinist form, reframed ordinary secular work as a religious calling (Beruf), worthy of the same moral seriousness once reserved for monastic life. Calvinist doctrine also taught predestination: salvation was already decided, and unknowable. That produced deep anxiety, and believers looked for indirect proof they were among the saved. Success in one’s calling, achieved through methodical labor, became a sign of grace, while ascetic restraint discouraged spending that success on comfort or luxury. The result, Weber argued, was a surplus of capital that got reinvested rather than consumed, a combination he treated as one psychological engine behind the “spirit of capitalism”: the drive to pursue profit systematically, as a duty, rather than simply to meet material need.
Weber was explicit that this was a partial explanation, not a complete one. He wrote that it was not his aim “to substitute for a one-sided materialistic an equally one-sided spiritualistic causal interpretation,” and he pointed to other contributing factors, including advances in law, administration, and mathematics, and to the fact that capitalist enterprise had existed in some form well before Calvin. His claim was narrower and more historical: that this particular religious psychology helped shape the ethic of early modern capitalism in Protestant Europe, not that Protestantism was capitalism’s sole or necessary cause, and not that any connection between spiritual belief and economic behavior must take this exact form (see Capitalism).