Gary David has led two lives simultaneously: musician and epistemologist. He was a professional jazz musician for 20 years. In the 60’s he formed a group called The Sound of Feeling, an innovative vocal-instrumental group. They recorded two albums for Verve, and Mercury records. Both won Grammy nominations. Studied pitch theory and practice with Erv Wilson from 1964 to 1995. Simultaneously, starting in 1964, Gary began his studies in epistemology, the theory of knowledge with J. Samuel Bois who was his mentor for the next 12 years. In 1975, he received a Ph.D. in epistemics. Since 1999, he has been engaged in a private counseling practice, as well as giving online seminars. called The Art of Learning with learning being the action by which we extend presence into the world. It has at its core his 40 year study of the biology of human emotion as the primary motivational system of the human being.