During the later years of his life, the late Professor Alexander devoted much of his time to the study of our aesthetic and moral experience. In regard to the latter, Alexander was impressed by Adam Smith's treatment of the Moral Sentiments and especially with what he considered his sure insight in seeking for the ground of obligation in the causes of conduct, rather than in its effects. These causes were the passions. In this he was in sympathy with his contemporary Hobhouse, who asserted with conviction that action rested on impulse feeling, and that it was useless to look for anything whether it was called Practical Reason or anything else, that stood outside the body of impulse feeling and controlled it. I think it was the considered opinion of Alexander, as it was that of Hobhouse, that if Psychology had anything to teach us bearing upon Morals, it was that the springs of human conduct must be looked for in our inherited tendencies with their associated emotions. Fear, sorrow, joy, repulsion, curiosity, pugnacity, self-assertion, the sex instinct, and (in some species) acquisitiveness and constructiveness, are present, not only in men of all living races, but also in most of the higher animals. These specific tendencies and emotions, with certain complex passions such as admiration, reverence, scorn and the rest; together with one or two general tendencies such as sympathy and imitativeness, arising out of the nature of mental processes, must have played a leading role in the determination of human conduct, both in its lower and higher grades.