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.