To the question of nutrition, that of locality and climate is next of kin. Nobody is so constituted as to be able to live everywhere and anywhere; and he who has great duties to perform, which lay claim to all his strength, has, in this respect, a very limited choice. The influence of climate upon the bodily functions, affecting their acceleration or retardation, extends so far, that a blunder in the choice of locality and climate is able not only to alienate a man from his actual duty, but also to withhold it from him altogether, so that he never even comes face to face with it. Animal vigour never acquires enough strength in him in order to reach that pitch of artistic freedom which makes his own soul whisper to him: I, alone, can do that.... Ever so slight a tendency to laziness in the intestines, once it has become a habit, is quite sufficient to make something mediocre, something "German" out of a genius; the climate of Germany, alone, is enough to discourage the strongest and most heroically disposed intestines. The tempo of the body's functions is closely bound up with the agility or the clumsiness of the spirit's feet; spirit itself is indeed only a form of these organic functions. Let anybody make a list of the places in which men of great intellect have been found, and are still found; where wit, subtlety, and malice constitute happiness; where genius is almost necessarily at home: all of them rejoice in exceptionally dry air. Paris, Provence, Florence, Jerusalem, Athens--these names prove something, namely: that genius is conditioned by dry air, by a pure sky--that is to say, by rapid organic functions, by the constant and ever-present possibility of procuring for one's self great and even enormous quantities of strength. I have a certain case in mind in which a man of remarkable intellect and independent spirit became a narrow, craven specialist and a grumpy old crank, simply owing to a lack of subtlety in his instinct for climate. And I myself might have been an example of the same thing, if illness had not compelled me to reason, and to reflect upon reason realistically. Now that I have learnt through long practice to read the effects of climatic and meteorological influences, from my own body, as though from a very delicate and reliable instrument, and that I am able to calculate the change in degrees of atmospheric moisture by means of physiological observations upon myself, even on so short a journey as that from Turin to Milan; I think with horror of the ghastly fact that my whole life, until the last ten years,--the most perilous years,--has always been spent in the wrong, and what to me ought to have been the most forbidden, places. Naumburg, Pforta, Thuringia in general, Leipzig, Bâle, Venice--so many ill-starred places for a constitution like mine. If I cannot recall one single happy reminiscence of my childhood and youth, it is nonsense to suppose that so-called "moral"