preacher and the teacher. Footnote 11: A. M. Ludovici, _Nietszche_, pp. 85f. Mr. Bertrand Russell has recently laid just emphasis upon the supremacy of impulse in determining human conduct; and has pointed out the distinction between impulses which make for life and those which make for death. William Blake had a somewhat similar view. What Blake in “The Marriage of Heaven and Hell” calls _energy_ appears to be that vital stress which expresses itself in our impulses, and which in the form of “poetic” energy is the source of creative art. In Blake’s psychology, this _energy_ only works out healthily and fruitfully when it is co-ordinated on the one side with Reason and on the other by Desire; and he traces our human troubles to an undue ascendency of one or other of these two balancing principles. When Reason prevails over Desire, it imposes disastrous restraint upon energy; but when the tables are turned, the ascendency of Desire leads to the “vegetated life.” Blake’s analysis has much to commend it; and it appears to supply the necessary complement to Mr. Russell’s. For our impulses, whether they make for life or death are the same impulses—the difference in their result springing from a difference in their direction, and in the conditions under which they operate. The old psychological analysis of the mind into will, intellect, affections, and so forth has served its turn; and for purposes of social building we must betake ourselves rather to an analysis of Blake’s _energy_ or Mr. Russell’s _impulses_. M. Bergson has shown us how the “_elan vitale_” has in the course of its onward march split up again and again, and in so doing has set afoot new lines of development and variation; and we have for result the infinite wealth of plant and animal form which fills the earth. The primitive urge of life was seemingly a bundle of tendencies, which were released, one at this point, and another at that, under the stress of the circumstances encountered on the way. In the same way the _energy_, the vital stress of personality is an organic complex of impulses, each of which has released and shaped itself conformably to the conditions in which the human spirit has found itself in the process of growth. In this complex of impulses, it is possible to discern three main strands: 1. _The Impulse of Self-preservation._ This has to do with the desire and purpose to maintain life; and its primitive form was determined by the necessity of procuring food, clothing and shelter. Its characteristic activity was that of discovering and adapting the means which were available to the end of sustaining life; and out of this grew agriculture, weaving, housebuilding and a range of operations which grew in number and elaboration as the requirements of life increased. Here is the origin of what Mr. Veblen has called _the Instinct of Workmanship_.