Helvétius, a French philosophe, born in Paris, of Swiss origin; author of a book entitled “De l'Esprit,” which was condemned by the Parlement of Paris for views advocated in it that were considered derogatory to the dignity of man, and which exposed him to much bitter hostility, especially at the hands of the priests; man he reduced to a mere animal, made self-love the only motive of his actions, and the satisfaction of our sensuous desires the principle of morals, notwithstanding which he was a man of estimable character and of kindly disposition (1715‒1771).
Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)
Helvetii * Hemans, Felicia Dorothea