YVES SIMON was born at Cherbourg, France on March 14, 1903. As a child he was afflicted for two years with tuberculosis in his bones, which left him limping for the rest of his life. He became interested in philosophy and the ideas and activities of the Christian Democratic movement from the beginning of his studies, and in 1923, under the direction of Celestine Bouglé, he wrote a thesis on Charles Denoyer to obtain his diploma at the Sorbonne. A year before, he had become a disciple of Jacques Maritain, while also taking up the study of Proudhon's social philosophy. Yet he continued his formal education in the sciences and devoted four years to the study of medicine. Returning again to philosophy, he obtained a degree from the Institut Catholique in Paris in 1929, and began teaching at the Université Catholique at Lille in 1930. He became a professor in 1932, a post he retained until 1938. During this time, he also taught a regular weekly course at the Institut Catholique in Paris, edited a series Cours et Documents de Philosophie for the publishing house of Téqui, and was the secretary of the Revue de Philosophie.
In 1934, Simon obtained his doctorate in philosophy at the Institut Catholique in Paris, for which he wrote a dissertation entitled Introduction à l'ontologie du connaître. This was published in the same year in a series called Bibliothèque française de philosophie, edited by Jacques Maritain for Desclée De Brouwer, and was soon recognized as a classic of contemporary Thomism. Matching the best works of Maritain and Gil÷ son by its depth, rigor, and clarity, this admirable book offers invaluable help to all those who seek to understand the reality of knowledge. A reprint edition is available from Irvington Press in New York, and Richard J. Thompson and Vukan Kuic have just completed work on a translation.
In another series, Questions disputées, edited for Desclée De Brouwer by Charles Journet and Jacques Maritain, Simon published in the same year yet another major work, a worthy companion of his dissertation, entitled Critique de la connaissance morale. This is an excellent introduction to the problems of practical knowledge, the scope and method of moral____________________