afterwards of Paracelsus and Albertus Magnus. I read and studied the
wild fancies of these writers with delight; they appeared to me
treasures known to few besides myself. I have described myself as
always having been imbued with a fervent longing to penetrate the
secrets of nature. In spite of the intense labour and wonderful
discoveries of modern philosophers, I always came from my studies
discontented and unsatisfied. Sir Isaac Newton is said to have avowed
that he felt like a child picking up shells beside the great and
unexplored ocean of truth. Those of his successors in each branch of
natural philosophy with whom I was acquainted appeared even to my boy's
apprehensions as tyros engaged in the same pursuit.

The untaught peasant beheld the elements around him and was acquainted
with their practical uses. The most learned philosopher knew little
more. He had partially unveiled the face of Nature, but her immortal
lineaments were still a wonder and a mystery. He might dissect,
anatomize, and give names; but, not to speak of a final cause, causes
in their secondary and tertiary grades were utterly unknown to him. I
had gazed upon the fortifications and impediments that seemed to keep
human beings from entering the citadel of nature, and rashly and
ignorantly I had repined.

But here were books, and here were men who had penetrated deeper and
knew more. I took their word for all that they averred, and I became
their disciple. It may appear strange that such should arise in the
eighteenth century; but while I followed the routine of education in
the schools of Geneva, I was, to a great degree, self-taught with
regard to my favourite studies. My father was not scientific, and I
was left to struggle with a child's blindness, added to a student's
thirst for knowledge. Under the guidance of my new preceptors I