“I confess that neither the structure of languages, nor the code of governments, nor the politics of various states, possessed attractions for me. It was the secrets of heaven and earth that I desired to learn; and whether it was the outward substance of things, or the inner spirit of nature and the mysterious soul of man that occupied me, still my enquiries were directed to the metaphysical, or, in its highest sense, the physical secrets of the world” (45).
“I feel exquisites pleasure in dwelling on the recollections of childhood, before misfortune had tainted my mind, and changed its bright visions of extensive usefulness into gloomy and narrow reflections upon self.” (46).
“I read and studied the wild fancies of these writers with delight; they appeared to me treasures known to few beside myself. I have described myself as always having been embued 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 m studies discontented and unsatisfied. Sir Issac Newton is said to have avowed that he felt like a child picking up shells beside the great and unexplored ocean of truth.” (47)
“I need not describe the feelings of those whose dearest ties are rent by that most irreparable evil; the void that presents itself to the soul; and the despair that is exhibited on the countenance. It is so long before the mind can persuade itself that she, whom we saw every day, and whose very existence appeared a part of our own, can have departed for ever – that the brightness of a beloved eye can have been extinguished, and the sound of a voice so familiar, and dear to the ear, can be hushed, never more to be heard. These are the reflections of the first days; but when the lapse of time proves the reality of the evil, then the actual bitterness of grief commences. Yet from whom has not that rude hand rent away some dear connection? and why should I describe a sorrow which all have felt, and must feel? The time at length arrives, when grief is rather an indulgence than a necessity; and the smile that plays upon the lips, although it may be deemed a sacrilege, is not banished. My mother was dead, but we had still duties which we ought to perform; we must continue our course with the rest, and learn to think ourselves fortunate whilst one remains whom the spoiler has not seized” (50)
“The labours of men of genius, however erroneously directed, scarcely ever fail in ultimately turning to the solid advantage of mankind.” (54).
“…with how many things are we upon the brink of becoming acquainted, if cowardice or carelessness did not restrain our enquiries … To examine the causes of life, we must first have recourse to death.” (56).
“Learn from me, if not by my precepts, at least by my example, how dangerous is the acquirement of knowledge, and how much happier that man is who believes his native town to be the world, than he who aspires to become greater than his nature will allow.” (57).
“A human being in perfection ought always to preserve a calm and peaceful mind, and never to allow passion or a transitory desire to disturb his tranquility. I do not think that the pursuit of knowledge is an exception to this rule. If the study to which you apply yourself has a tendency to weaken your affections, and to destroy your taste for those simply pleasures in which no alloy can possibly mix, then that study is certainly unlawful, that is to say, not befitting the human mind. If this rule were always observed; if no man allowed any pursuit whatsoever to interfere with the tranquility of his domestic affections, Greece had not been enslaved; Caesar would have spared his country; America would have been discovered more gradually; and the empire of Mexico and Peru had not been destroyed.” (59)