Felix Solomon Cohen was a professor of jurisprudence, a civil servant, and an author of numerous articles on law, ethics, and philosophy, on Native Americans and minorities, and on human and natural resources. He retired from government service and re-entered private general law practice in January 1948. In 1946, Cohen had begun teaching legislative drafting and legal philosophy at Yale University's Law School, and jurisprudence at The City College of New York's Department of Philosophy. Cohen had also taught at the New School for School Research and the University of Newark Law School (later Rutgers Law School). In 1951 he published Readings in Jurisprudence and Legal Philosophy, the syllabus which he developed with his father, Morris R. Cohen, for both their jurisprudence courses (Morris Cohen at St. John's Law School and Felix Cohen at Rutgers and the New School for Social Research).