 Mill suggests that Taylor Mill was deeply involved in the composition of three works of greater philosophical significance than those discussed above. The earliest is the Principles of Political Economy. The Principles’ subtitle is With Some of their Applications to Social Philosophy. At least a third of the volume is concerned with topics that belong as much to philosophy as to economics, including the portion of the work that Harriet did the most to shape, a chapter titled “On the Probable Futurity of the Labouring Classes” (J. S. Mill, [PPE], 758–96). This chapter argues that when the laboring class has made sufficient moral and intellectual progress, its members will refuse to settle for mere wages any longer. They will instead insist first on profit-sharing and later on employee ownership of firms. They will even experiment with Socialist and Communist communities of the sorts depicted by Saint-Simon, Fourier, Blanc, and Owen. Mill’s Autobiography states that