becoming a mere rationalist. At bottom he is ignorant of the reality that lies behind natural phenomena; he must even be ignorant of it, for it lays hold upon the infinite, and so must elude a finite being like man. But the desire to conceal his own ignorance from himself and others, the secret push for power and prestige that lies deep down in the breast of the man of science as in that of every other man, impels him to attach an independent value to the operations of the intellect that have only an instrumental value in the service of outer perception and to conceive that he has locked up physical nature in his formulæ. The man of science thus falls victim to a special form of metaphysical illusion. The gravity of the error of the scientific intellectualist is multiplied tenfold when he conceives that his formulæ cover not merely the natural law but the human law as well, when he strives, like Taine, to convert man himself into a “walking theorem,” a “living geometry.” This denial of every form of spontaneity was rightly felt by the romanticists to be intolerable. Goethe contrasts the smug satisfaction of Wagner in his dead formulæ that give only what is external and secondary, with Faust’s fierce craving for immediacy and therefore his impatience with an analysis that gives only the dry bones from which the vital breath has departed. Wagner is a philistine because he is not tormented by the thirst for the infinite. Faust, on the other hand, reaches out beyond the mere intellect towards the spirit that is behind the shows of nature, but this spirit appears to him and reduces him to despair by declaring that he is trying to grasp something that is not only infinite but alien to him. Instead of turning from this alien spirit to the spirit that is relevant to man, a spirit that sets bounds to every inordinate craving, including the inordinate craving for knowledge (_libido sciendi_), Faust gives himself to the devil in what was, in the time of the youthful Goethe, the newest fashion: he becomes a Rousseauist. Instead of striking into the ascending path of insight, he descends to the level of impulse. Seen from this level the power by which we multiply distinctions seems to him, as it was to seem later to Wordsworth, not merely secondary but false, and so definition yields to indiscriminate feeling (_Gefühl ist alles_). In general the Rousseauistic reply to the Cartesian attempt to identify thought and being is the identification of being with emotion (_je sens donc je suis_).