Let us not be surprised, if very intelligent, extremely learned men, either obstinately shut their eyes, or run counter to their ordinary sagacity, every time there is a question respecting an object which they have not the courage to examine with that attention they lend to many others. Lord Chancellor Bacon pretends, "that a little philosophy disposes men to atheism, but that great depth re-conducts them to religion." If we analyze this proposition, we shall find it signifies, that even moderate, indifferent thinkers, are quickly enabled to perceive the gross absurdities of superstition; but that very little accustomed to meditate, or else destitute of those fixed principles which could serve them for a guide, their imagination presently replaces them in the theological labyrinth, from whence reason, too weak for the purpose, appeared disposed to withdraw them: these timid souls, who fear to take courage, with minds disciplined to be satisfied with theological solutions, no longer see in nature any thing but an inexplicable enigma; an abyss which it is impossible for them to fathom: these, habituated to fix their eyes upon an ideal, mathematical point, which they have made the centre of every thing, whenever they lose sight of it, find the universe becomes an unintelligible jumble to them; then the confusion in which they feel themselves involved, makes them rather prefer returning to the prejudices of their infancy, which appear to explain every thing, than to float in the vacuum, or quit a foundation which they judge to be immoveable. Thus the proposition of Bacon should seem, to indicate nothing, except it be that the most experienced persons cannot at all times defend themselves against the illusions of their imagination; the impetuosity of which resists the strongest reasoning.
Nevertheless, a deliberate study of nature is sufficient to undeceive every man who will calmly consider things: he will discover that the phenomena of the world is connected by links, invisible to superficial notice, equally concealed from the too impetuous observer, but extremely intelligible to him who views her with serenity. He will find that the most unusual, the most marvellous, as well as the most trifling, or ordinary effects, are equally inexplicable, but that they all equally flow from natural causes; that supernatural causes, under whatever name they way be designated, with whatever qualities they may be decorated, will never do more than increase difficulties; will only make chimeras multiply. The simplest observation will incontestibly prove to him that every thing is necessary; that all the effects he perceives are material; that they can only originate in causes of the same nature, when he even shall not be able to recur to them by the assistance of his senses. Thus his mind, properly directed, every where show him nothing but matter, sometimes acting in a manner which his organs permit him to follow, at others in a mode imperceptible by the faculties he possesses: he will see that all beings follow constant invariable laws, by which all combinations are united and destroyed; he will find that all forms change, but that, nevertheless, the great whole ever remains the same. Thus, cured of the idle notions with which he was imbued, undeceived in those erroneous ideas, which from habit be attached to imaginary systems, he will cheerfully consent to be ignorant of whatever his organs do not enable him to compass; he will know that obscure terms, devoid of sense, are not calculated to explain difficulties; guided by reason, he will throw aside all hypothesis of the imagination; the champion of rectitude, he will attach himself to realities, which are confirmed by experience, which are evidenced by truth.