brings neither "sweetness nor light" to the actual world in which we live. PART II THE CAREER OF REASON The foregoing analysis of human behavior might thus be briefly summarized. We found that man is born a creature with certain tendencies to act in certain definite ways, tendencies which he largely possesses in common with the lower animals. We found also that man could learn by trial and error, that his original instinctive equipment could be modified. Thus far in his mental life man is indistinguishable from the beasts. But man's peculiar capacity, it appeared, lay in his ability to think, to control his actions in the light of a future, to choose one response rather than another because of its consequences, which he could foresee and prefer. This capacity for reflection, for formulating a purpose and being able to obtain it, we found to be practical in its origins, but persisting on its own account in the disinterested inquiry of philosophy and science and the free imaginative construction of art. And in all man's behavior, whether on the plane of instinct, habit, or reflection, we found action to be accompanied by emotion, by love and hate, anger and awe, which might at once impede action by confusing it, or sustain it by giving it a vivid and compelling motive. The second part of the book was devoted to an analysis of the various specific traits which human beings display and the consequences that these have in men's relations with one another. Under certain conditions, one or another of these may become predominant; in particular historical conditions, one or another of them may have a high social value or the reverse. These traits vary in different individuals; in any of them, a man may be totally defective or abnormally developed. But taken in general, they constitute the changeless pattern of human nature, and fix the conditions and the limits of action. But while these universal traits determine what man may do, and fix definitively the boundaries of human possibility, within these limits the race has a wide choice of ideals and attainments. The standards of what man will and should do, within the boundaries of the nature which is his inheritance, are to be found not in his original impulses, but in his mind and imagination. The human being is gifted with the ability to imagine a future more desirable than the present, and to contrive ingeniously in behalf of anticipated or imagined goods. These anticipated goods we call ideals, and these ideals arise, in the last analysis, out of the initial and inborn hungers and cravings of men. "Intellect is of the same flesh and blood with all the instincts, a brother whose superiority lies in his power to appreciate, harmonize, and save them all." The function of reason is not to set itself over against men's original desires, but to envisage ideals and devise instruments whereby they may all, so far as nature allows, be fulfilled.