Dudley Allen Sargent, M.D. (1849-1924) was selected as the person whose life in physical education would best exemplify the theme of the three Cs--commitment, cooperation, and communication. Sargent demonstrated a life-long commitment to two purposes: to prepare those to teach physical education to others and to promote exercises for all people and not just college students. His commitment to the profession was at the expense of his marriage, and it contributed to a separation from his wife and son. The cooperation of Dr. Sargent was shown by his service to various professional organizations, including four terms as president of the American Physical Education Association. Sargent saw some good in all programs in physical education and taught them all at his Normal School and at Harvard Summer School. In the area of communication, Sargent was a fine speaker and expressed his views on many subjects in a forceful manner both through his speeches and his numerous writings. A fourth C that can be added to the life of Dr. Sargent stands for courage. Sargent was recognized for his willingness to stand up for views even though they might not be popular. His advocacy of the need for reform of college football cost him his faculty rank at Harvard. (Author/JA)