Whatever may have been the cause that placed man in his present abode, that gave him the faculties he possesses; whether the human species be considered as the work of nature, or whether it be supposed that he owes his existence to an intelligent being, distinguished from nature; the existence of man, such as he is, is a fact; we behold in him a being who thinks, who feels, who has intelligence, who loves himself, who tends to his own conservation, who in every moment of his duration strives to render his existence agreeable; who, the more easily to satisfy his wants and to procure himself pleasure, congregates in society with beings similar to himself; of whom his conduct can either conciliate the favour, or draw upon him the disaffection. It is, then, upon these general sentiments, inherent in his nature, which will subsist as long as his race shall endure, that we ought to found morality; which is only a science embracing, the duties of men living together in society. These duties have their spring in our nature, they are founded upon our necessities, because we cannot reach the goal of happiness, if we do not employ the requisite means: these means constitute the moral science. To be permanently felicitous, we must so comport ourselves as to merit the affection, so act as to secure the assistance of those, beings with whom we are associated; these will only accord us their love, lend us their esteem, aid us in our projects, labour to our peculiar happiness, but in proportion as our own exertions shall be employed for their advantage. It is this necessity, flowing naturally out of the relations of mankind, that is called MORAL OBLIGATION. It is founded upon reflection, rested upon those motives competent to determine sensible, intelligent beings, to pursue that line of conduct, which in best calculated to achieve that happiness towards which they are continually verging. These motives in the human species, never can be other than the desire, always regenerating, of procuring good and avoiding evil. Pleasure and pain, the hope of happiness, or the fear of misery, are the only motives suitable to have an efficacious influence on the volition of sensible beings. To impel them towards this end, it is sufficient these motives exist and be understood to have a knowledge of them, it is only requisite to consider our own constitution: according to this, we shall find we can only love those actions, approve that conduct, from whence result actual and reciprocal utility; this constitutes VIRTUE. In consequence, to conserve ourselves, to make our own happiness, to enjoy security, we are compelled to follow the routine which conducts to this end; to interest others in our own preservation, we are obliged to display an interest in theirs; we must do nothing that can have a tendency to interrupt that mutual co-operation which alone can lead to the felicity desired. Such is the true establishment of moral obligation.