Finally Nietzsche inquires into the habits and practices of psychologists. Not even among these workers does he find a basis for philosophy. Psychology, he argues, has been guided, not by a detached and lofty desire to ascertain truth in its relation to the human mind, but by prejudices and fears grounded in moral considerations. He finds a constant desire on the part of experimenters to account for "good" impulses as distinguished from "bad" ones. And in this desire lies the superimposing of moral prejudices on a science which, more than all others, deals with problems farthest removed from moral influences. These prejudices in psychology, as well as in all branches of philosophy, are the obstacles which stand in the way of any deep penetration into the motives beneath human conduct. Nietzsche, in his analyses and criticisms, is not solely destructive: he is subterraneously constructing his own philosophical system founded on the will to power. This phrase is used many times in the careful research of the first chapter. As the book proceeds, this doctrine develops. Nietzsche's best definition of what he calls the "free spirit," namely: the thinking man, the intellectual aristocrat, the philosopher and ruler, is contained in the twenty-six pages of the second chapter of "Beyond Good and Evil." In a series of paragraphs--longer than is Nietzsche's wont--the leading characteristics of this superior man are described. The "free spirit," however, must not be confused with the superman. The former is the "bridge" which the present-day man must cross in the process of surpassing himself. In the delineation and analysis of him, as presented to us here, we can glimpse his most salient mental features. Heretofore, as in "Thus Spake Zarathustra," he has been but partially and provisionally defined. Now his instincts and desires, his habits and activities are outlined. Furthermore, we are given an explanation of his relation to the inferior man and to the organisms of his environment. The chapter is an important one, for at many points it is a subtle elucidation of many of Nietzsche's dominant philosophic principles. By inference, the differences of class distinction are strictly drawn. The slave-morality _(sklavmoral)_ and the master-morality (_herrenmoral_), though as yet undefined, are balanced against each other; and the deportmental standards of the masters and slaves are defined by way of differentiating between these two opposing human factions. While the serving class is constantly manifesting its need of a guiding dogma, the ruling class is constantly approaching the state wherein the arbitrary moral mandates are denied. Nietzsche sees a new order of philosophers appearing--men who will stand beyond good and evil, who will be not only free spirits, "but something more, higher, greater, and fundamentally different." In describing these men of the future, of which the present free men are