In silent, trustful association with Nature and my mathematics, I lived for several years after my confirmation. In the latter part of the time my duties led me towards the study of natural laws, and thus towards the perception of the unity so often longed for in soul and spirit, and now at last gradually becoming clear from amidst the outwardly clashing phenomena of Nature.[89]
At last I could no longer resist the craving for knowledge which I felt within me. I thrust on one side all the ordinary school-learning which I utterly failed to appropriate in its customary disconnected state (it was meant only to be learned by rote, and this I never could recognise as the exclusive condition of a really comprehensive culture of the human mind), and I went up in the middle of my eighteenth year to the University of Jena. As I had been for two years past living completely with Nature and my mathematics, and dependent upon myself alone for any culture I might have arrived at, I came to the university much like a simple plant of nature myself. I was at this time peculiarly moved by a little knowledge I had picked up about the solar system, including particularly a general conception of Kepler’s laws, whereby the laws of the spheres appealed to me on the one hand as an all-embracing, world-encircling whole, and on the other as an unlimited individualisation into separate natural objects. My own culture had been hitherto left to myself, and so also now I had to select my own studies and to choose my courses of lectures for myself. It was to be expected that the lectures of the professors would produce a singular effect upon me, and so they did.
I chose as my courses natural history, physics, and mathematics, but I was little satisfied. I seldom gained what I expected. Everywhere I sought for a sound method deriving itself from the fundamental principle lying at the root of the subject in hand, and afterwards summing up all details into that unity again; everywhere I sought for recognition of the quickening interconnection of parts, and for the exposition of the inner all-pervading reign of law. Only a few lectures made some poor approach to such methods, but I found nothing of the sort in those which were most important to me, physics and mathematics. Especially repugnant to me was the piece-meal patchwork offered to us in geometry, always separating and dividing, never uniting and consolidating.