* "A Treatise on Man: His Intellectual Faculties & His Education" by Helvétius - English translation by W. Hooper, 1777, Google Books* "De l'Esprit, or Essays on the Mind and Its Several Faculties" by Helvétius - English translation by William Mudford, 1807, Google Books
==References====External links==* "A Treatise on Man: His Intellectual Faculties & His Education" by Helvétius - English translation by W. Hooper, 1777, Google Books* "De l'Esprit, or Essays on the Mind and Its Several Faculties" by Helvétius - English translation by William Mudford, 1807, Google Books