Capitalism has been the dominant form of social and economic organization since the industrial revolution. It defines what we eat, what we wear, how we work, and the value of the education we get at places like Princeton University. Since its dawn, capitalism has also fueled discontent and revolution. The word itself, coined by William Thackeray in 1854 in his novel The Newcomes, about love, banking, and backstabbing, caught on after Karl Marx’s death in 1883. It has been the subject of most continuous debate ever since.