Abstract
Yves R. Simon is one of the great and—outside the Catholic intellectual orbit—greatly neglected philosophers of the century. A student of both science and philosophy in his native France, Simon brought great lucidity of thought and an economy of style to some of the central questions that have vexed contemporary public and private life. When he came to the United States in 1938, he began publishing a series of concise but wide-ranging studies of democratic government, authority, epistemology, ethics, politics, natural law, and a variety of other subjects that attracted the attention of many distinguished thinkers including Leo Strauss. Maurice Cranston lamented that his premature death at fifty-eight “robbed the Western world of one of its most original and distinguished political theorists”.