Earlier history, still under the influence of the speculative masters, had characterised the progress of German philosophy from Kant to Hegel as the necessary and logical evolution of the idea of philosophy in its highest sense. But the present prevailing method of presentation is accustomed to draw a sharp, deep line at the termination of Kant's activity, and to regard the entire subsequent speculative development of the Kantian philosophy as a fallacious digression and an abandonment of the fundamental critical idea. "Back to Kant" is the watchword that has resounded since the beginning of the sixties, at first in solitary utterances, and then with greater, ever-increasing emphasis—the incipient condemnation of a period in which German philosophy had celebrated its grandest and most brilliant triumphs, and at a time when German speculative thought had just begun to grow better known and more influential abroad. * * * * * Back to Kant. Yes. But to which Kant? To the Kant of the first or the second edition of the Critique of the Pure Reason? To the Critique of the Pure or the Critique of the Practical Reason? Very perplexing questions these. The philosophy of Kant is not so easily reducible to a simple and comprehensive formula. It is a veritable Proteus, that changes at will form and appearance. Every one interprets it, in the end, as he wishes Kant should have thought. The cry "Back to Kant" has become in the ranks of German philosophers a veritable apple of discord. An enormous Kantian literature has sprung up; critical, exegetical, constructive. No one can dispute its acumen, learning, erudition, and profundity. But the traits of Alexandrianism unmistakably cling to it. A more pernicious waste of intellectual power, perhaps, than that of the much deplored speculative period. One has the feeling often as if one would like to cast into the tumultuous, struggling crowd of combatants a different battle cry—"Back to Nature! Back to to the examination of the true contents of things!"