This book is an introduction to the philosophical ideas of Plato, Rene Descartes, Baruch Spinoza, and Immanuel Kant on the role of reason which have contributed to the evolution of sociological thought. Reason, according to Rickman, has a relevance to sociology that has not been explored. Because he is interested in the philosophical reflections which proved influential for understanding the social world, he deals systematically with the four philosophers'...