This audiobook focuses on the seventeenth century: the greatest philosophic century of modern times, and perhaps of any time. It began with René Descartes, whose system, premises and conclusions are clearly explained; what followed was marked by his influence. Discover the advances of Cartesianism through the work of the Frenchman Malebranche, the Dutchman Spinoza, and the German Leibnitz, to get the clearest picture of these fascinating times.