No doubt it was the unmistakably Greek note in Schopenhauer--the delivery of instinct, so long condemned to the ethical dungeons--that engendered Nietzsche's first wild enthusiasm for the Frankfort sage. The atmosphere of Leipsic in 1865 was heavy with moral vapors, and the daring dissent of Schopenhauer must have seemed to blow through it like a sharp wind from the sea. And Nietzsche, being young and passionate, was carried away by the ecstasy of discovery, and so accepted the whole Schopenhauerean philosophy without examining it too critically--the bitter with the sweet, its pessimism no less than its rebellion. He, too, had to go through the green-sickness of youth, particularly of German youth. The Greek was yet but half way from Naumburg to Attica, and he now stopped a moment to look backward. "Every line," he tells us somewhere, "cried out renunciation, denial, resignation.... Evidences of this sudden change are still to be found in the restless melancholy of the leaves of my diary at that period, with all their useless self-reproach and their desperate gazing upward for recovery and for the transformation of the whole spirit of mankind. By drawing all my qualities and my aspirations before the forum of gloomy self-contempt I became bitter, unjust and unbridled in my hatred of myself. I even practised bodily penance. For instance, I forced myself for a fortnight at a stretch to go to bed at two o'clock in the morning and to rise punctually at six." But not for long. The fortnight of self-accusing and hair-shirts was soon over. The green-sickness vanished.[8] The Greek emerged anew, more Hellenic than ever. And so, almost from the start, Nietzsche rejected quite as much of Schopenhauer as he accepted. The Schopenhauerean premise entered into his system--the will to live was destined to become the father, in a few years, of the will to power--but the Schopenhauerean conclusion held him no longer than it took him to inspect it calmly. Thus he gained doubly--first, by the acquisition of a definite theory of human conduct, one giving clarity to his own vague feelings, and secondly, by the reaction against an abject theory of human destiny, the very antithesis of that which rose within him.