Characteristics of ancient and modern science in the text?

The next morning I delivered my letters of introduction and paid a visit to some of the principal professors. Chance -- or rather the evil influence, the Angel of Destruction, which asserted omnipotent sway over me from the moment I turned my reluctant steps from my father's door -- led me first to M. Krempe, professor of natural philosophy. He was an uncouth man, but deeply embued in the secrets of his science. He asked me several questions concerning my progress in the different branches of science appertaining to natural philosophy. I replied carelessly; and, partly in contempt, mentioned the names of my alchymists as the principal authors I had studied. The professor stared; "Have you," he said, "really spent your time in studying such nonsense?"

I replied in the affirmative. "Every minute," continued M. Krempe with warmth, "every instant that you have wasted on those books is utterly and entirely lost. You have burdened your memory with exploded systems and useless names. Good God! in what desert land have you lived, where no one was kind enough to inform you that these fancies, which you have so greedily imbibed, are a thousand years old, and as musty as they are ancient? I little expected, in this enlightened and scientific age, to find a disciple of Albertus Magnus and Paracelsus. My dear sir, you must begin your studies entirely anew."

So saying, he stepped aside, and wrote down a list of several books treating of natural philosophy, which he desired me to procure; and dismissed me, after mentioning that in the beginning of the following week he intended to commence a course of lectures upon natural philosophy in its general relations, and that M. Waldman, fellow-professor, would lecture upon chemistry the alternate days that he omitted.

I returned home, not disappointed, for I have said that I had long considered those authors useless whom the professor reprobated; but I returned, not at all the more inclined to recur to these studies in any shape. M. Krempe was a little squat man, with a gruff voice and a repulsive countenance the teacher, therefore, did not prepossess me in favour of his pursuits. In rather a too philosophical and connected a strain, perhaps, I have given an account of the conclusions I had come to concerning them in my early years. As a child, I had not been content with the results promised by the modern professors of natural science. With a confusion of ideas only to be accounted for by my extreme youth, and my want of a guide on such matters, I had retrod the steps of knowledge along the paths of time, and exchanged the discoveries of recent inquirers for the dreams of forgotten alchymists. Besides, I had a contempt for the uses of modern natural philosophy. It was very different when the masters of the science sought immortality and power; such views, although futile, were grand: but now the scene was changed. The ambition of the inquirer seemed to limit itself to the annihilation of those visions on which my interest in science was chiefly founded. I was required to exchange chimeras of boundless grandeur for realities of little worth.