Since 1970, Robert Greenleaf's (1904-1990) writings on servant leadership have powerfully influenced every imaginable field of endeavor, from management training and education to corporate ethics and religious missions. Scores of books and articles expanding on or using his concept of applying humanist values to life and work have appeared since then, but less has been written about the man himself. Authorized by Greenleaf's surviving children, this biography covers his early years in Indiana, where he was born, and the great inspiration his father provided as the prototype "servant leader." The book details the sources of his thought, describes his experiences as a businessman and a Quaker, highlights his friendships with dozens of luminaries - including Eleanor Roosevelt, Aldous Huxley, and the Menninger brothers - and shows how he changed business history long before his first book was published at age 73.