unforgotten and unforgettable experiences concerning the “useful-purposive” and the “mischievous-non-purposive.” According to this theory, “good” is the attribute of that which has previously shown itself useful; and so is able to claim to be considered “valuable in the highest degree,” “valuable in itself.” This method of explanation is also, as I have said, wrong, but at any rate the explanation itself is coherent, and psychologically tenable.