“A man would make but a very sorry chemist if he attended to that department of human knowledge alone.”

“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 be greater than his nature will allow.”

“Oh! Stars and clouds and winds, ye are all about to mock me; if ye really pity me, crush sensation and memory; let me become as nought; but if not, depart, depart, and leave me in darkness.”

“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 his world, than he who aspires to become greater than his nature will allow.”

“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 forever—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.”

“The fallen angel becomes a malignant devil. Yet even that enemy of God and man had friends and associates in his desolation; I am alone.”

“I saw- with shut eyes, but acute mental vision- I saw the pale student of unhallowed arts kneeling beside the thing he had put together... Frightful must it be, for supremely frightful would be the effect of any human endeavor to mock the stupendous mechanism of the Creator of the world.”