XVI. Now, by freely and spontaneously resolving to conform all the actions of his life to the dictates of reason, which commands him to be wise in his self-government, upright with others, and pious towards the supreme Author, man will have worthily corresponded to the end for which he was created—he will have fulfilled his destination; for it is clearly the destination of man to make the best possible use of the sublime faculties with which his soul is endowed; and the best possible use he does make when he subordinates his inferior to his superior tendencies, the cravings of the body to those of the soul; in a word, when he obeys the dictates of reason.

XVII. When man obeys the dictates of reason, an internal voice in his heart tells him that he has done right; he feels satisfied with himself, and is penetrated with a sense of true joy. When, on the contrary, he consciously infringes the laws of reason, he is not only deprived of that internal approbation, but an inextinguishable voice rises reproachful within his heart; he is no longer satisfied with himself, but feels uneasiness and perturbation. That internal voice, which judges man's actions, and generates happiness or sorrow, is what is called Conscience.

XVIII. But the human soul, when it concentrates itself within, has also the faculty of feeling the sense of its own individuality, and perceiving that the state in which it is is its own. By virtue of this sense, which we may call feeling, the soul is led always to desire its own welfare, its own happiness; thence springs love or hatred, inclination or aversion towards an object, as this object seems apt to occasion pleasure or pain. But man, sooner or later, discovers that a true and permanent pleasure cannot be obtained through any of the physical enjoyments on earth, which he may not always be able to procure, or, when procured, leave after them weariness and disgust. He, consequently, cannot place in them his true happiness; and his internal sense tells him that there are other enjoyments of a purely spiritual nature, which alone can satisfy the highest aspirations of his soul. The exercise of his moral duties—which, through his freedom of action, lies always within his power, and by which alone he can tranquillise his conscience and fully delight in self-contentment—is that which offers to his soul true and permanent enjoyment; that alone is worth desiring.

[CHAPTER III.]

XIX. on man governing himself morally well in life, it becomes manifest to him, on the one hand, that his conduct, being conformable to the end for which he was created, must also be agreeable to the will of the Creator. On the other hand, that same internal sense, which prompts him to satisfy the demands of his own conscience, leads him, also, to elevate his mind towards God; and he feels at the bottom of his heart that he would be wanting in the principal element of his happiness if he referred not his every thought to the Author of his existence. This twofold direction of the mind towards God is called Religion, a word derived from the Latin religare, for, as a moral being endowed with intelligence and freedom, man feels always a certain tendency to disengage himself from the physical order of terrestrial things, and to link himself again to the Supreme Cause from whom he emanated.

XX. All the peoples of antiquity exhibited, in their successive developments, the aptitude of the human soul to entertain religion within itself, nay, the necessity in which it finds itself to connect the exercise of moral duties or virtue with the Supreme Source of all morality. In fact, God, in His infinite wisdom and goodness, wills nothing but what is good; and in no better mode could man ever manifest his gratitude to the Author of his existence, than by doing that which is agreeable to His will. Hence it is, that whoever is true to his destination, is said to be true to God; and he who is virtuous is religious. There is, then, in the human soul a natural disposition to religiousness or piety; and the history of all ages testifies that no people ever existed, who, however rude and uncultivated, has not had some presentiment of the relations which bind the rational creature to its Creator. Man is born to religion.[1]

XXI. This need for man to be religious constitutes the basis of faith. As man is said to know that which is proved to him by experience, or by the testimony of the senses, so he is said to believe that which is to him a real want, although it cannot be demonstrated to him either by experience or by the evidence of the senses. Knowledge is based upon objective, and belief upon subjective proofs.

The existence of God, the providence with which He governs the world, the immortality of the soul, the excellence of virtue, the just expectation of a final triumph of good, and of an improvement and future perfection of the human condition, are truths which have their foundations in man himself, that is, in the nature of his soul; they originate in him, even without the concurrence of reflection, almost from an innate feeling of the heart, which impels him to admit them; they are founded on subjective proofs, and man believes them as necessities of his own nature. These religious truths are therefore called natural, and their disciples are said to profess a natural religion.

[CHAPTER IV.]

XXII. yet, notwithstanding the possibility for man to attain happiness by only following the voice of reason, experience has shown, in the most unmistakable manner, that natural religion is insufficient alone to guide mankind in the right path, to preserve him from error, and to regulate his life with constant conformity to his destination, under all circumstances and in all conjunctures. Such insufficiency is caused by various obstacles, presented by the self-same nature of man, and the objects that surround him, and which prevent reason from exercising an absolute dominion over the heart, and naturally weaken its influence on human actions.