If man was perfectly contented, there would no longer be any activity in the world; it is necessary that he should desire; it is requisite that he should act; it is incumbent he should labour, in order that he may be happy: such is the course of nature of which the life consists in action. Human societies can only subsist, by the continual exchange of those things in which man places his happiness. The poor man is obliged to desire, he is necessitated to labour, that he may procure what he knows is requisite to the preservation of his existence; the primary wants given to him by nature, are to nourish himself, clothe himself, lodge himself, and propagate his species; has he satisfied these? He is quickly obliged to create others entirely new; or rather, his imagination only refines upon the first; he seeks to diversify them; he is willing to give them fresh zest; arrived at opulence, when he has run over the whole circle of wants, when he has completely exhausted their combinations, he falls into disgust. Dispensed from labour, his body amasses humours; destitute of desires, his heart feels a languor; deprived of activity, he is obliged to participate his riches, with beings more active, more laborious than himself: these, following their own peculiar interests, take upon themselves the task of labouring for his advantage; of procuring for him means to satisfy his want; of ministering to his caprices, in order to remove the languor that oppresses him. It is thus the great, the rich excite the energies, give play to the activity, rouse the faculties, spur on the industry of the indigent; these labour to their own peculiar welfare by working for others: thus the desire of ameliorating his condition, renders man necessary to his fellow man; thus wants, always regenerating, never satisfied, are the principles of life,--the soul of activity,--the source of health,--the basis of society. If each individual was competent to the supply of his own exigencies, there would be no occasion for him to congregate in society; but it is his wants, his desires, his whims, that place him in a state of dependence on others: these are the causes that each individual, in order to further his own peculiar interest, is obliged to be useful to those, who have the capability of procuring for him the objects which he himself has not. A nation is nothing more than the union of a great number of individuals, connected with each other by the reciprocity of their wants; by their mutual desire of pleasure. The most happy man is he who has the fewest wants, and who has the most numerous means of satisfying them. The man who would be truly rich, has no need to increase his fortune, it suffices he should diminish his wants.