A Yale University philosopher probes the humanity of man and explores man's potentialities and possibilities for becoming more complete and more human through free efforts. This is a study of man's world which accounts for the simplest of meaningless acts to the radical transformative decisions of the creative will, all the rights of man, private, political and social. In part one, the author describes man as having human nature, common and interconnected realities, relevant and compulsive possibilities, as having private and common experience and free creativity. In similar vein he analyzes the static freedoms, the socialization of man and the freedom of preference. Section two treats man's ethics -- such problems as absolute morality and ultimate ends, freedom of choice, consciousness, the Golden Rule, natural law, etc. The final part is concerned with man's dynamic force the creative will and the evolution of ethical man. Profound philosophical approach, which the average layman will bypass, but others interested in philosophy will find of interest and moment.