The diversity found among the individuals of the human species, causes inequalities between man and man: this inequality constitutes the support of society. If all men were equal in their bodily powers, in their mental talents, they would not have any occasion for each other: it is the variation of his faculties, the inequality which this places him in, with regard to his fellows, that renders morals necessary to man: without these, he would live by himself, he would remain an isolated being. From whence it may be perceived, that this inequality of which man so often complains without cause--this impossibility which each man finds when in an isolated state, when left to himself, when unassociated with his fellow men, to labour efficaciously to his own welfare, to make his own security, to ensure his own conservation; places him in the happy situation of associating with his like, of depending on his fellow associates, of meriting their succour, of propitiating them to his views, of attracting their regard, of calling in their aid to chase away, by common and united efforts, that which would have the power to trouble or derange the order of his existence. In consequence of man's diversity, of the inequality that results, the weaker is obliged to seek the protection of the stronger; this, in his turn, recurs to the understanding, to the talents, to the industry of the weaker, whenever his judgment points out he can be useful to him: this natural inequality furnishes the reason why nations distinguish those citizens who have rendered their country eminent services. It is in consequence of his exigencies that man honors and recompenses those whose understanding, good deeds, assistance, or virtues, have procured for him real or supposed advantages, pleasures, or agreeable sensations of any sort: it is by this means that genius gains an ascendancy over the mind of man, and obliges a whole people to acknowledge its powers. Thus, the diversity and inequality of the faculties, as well corporeal as mental or intellectual, renders man necessary to his fellow man, makes him a social being, and incontestibly proves to him the necessity of morals. According to this diversity of faculties, the individuals of the human species are divided into different classes, each in proportion to the effects produced, or the different qualities that may be remarked: all these varieties in man flow from the individual properties of his soul, or from the particular modification of his brain. It is thus, that wit, imagination, sensibility, talents, &c. diversify to infinity the differences that are to be found in man. It is thus, that some are called good, others wicked; some are denominated virtuous, others vicious; some are ranked as learned, others as ignorant; some are considered reasonable, others unreasonable, &c.