"Thus was written _the Physical and Moral System of Woman_. This treatise, which agreed in its development with a title so imposing, has remained superior to all those which have been written upon woman, without excepting the remarkable work of M. Virey, which failed, perhaps, in eclipsing that of Roussel, solely from its severer method and more scientific manner of treatment. He soon undertook another treatise, intended to serve as a pendant to the former. This new treatise, entitled the _Physical and Moral System of Man_, was not completed, which, judging from what he had published, is much to be regretted. He caused to be inserted in the journals of the day, _An Essay on Sensibility_; _An Account of Madame Helvetius_; a short dissertation, entitled, _Historic Doubts on Sappho_; some remarks '_On the Sympathies_.' He had commenced a lengthened work on Stahl, the celebrated head of the medical college, called _Animist_, but this work remained unpublished; he reviewed the work of Madame de Stael, upon the Affinities of Literature with Social Institutions; he applied himself to combat the doctrine of the indefinite perfectibility of the human spirit, developed by Condorcet, in one of his most remarkable writings. The problem was then proposed in terms such as could not afford any satisfactory conclusion--as yet the science of history did not exist. He wrote upon the right of making a will, which he regarded as inviolable and imprescriptible; he addressed public exhortations to political electors, to remind them of their duties and of their rights; he admired the institutions of Lycurgus, and published a dissertation on the government of Sparta. It is thus that the empire of circumstances under which France at present exists dominates over all minds. Roussel, yet meditating with a tender partiality upon the physical and moral constitution of woman, could not resist descending into the arena of political discussion. Thanks to the moderation of his character, his voice, in the midst of revolutionary storms, was hardly understood, and his existence was not disturbed.