 He was remembered for only one book, the "Théodicée", whose supposed central argument Voltaire lampooned in his popular book "Candide", which concludes with the character Candide saying, ""Non liquet"" (it is not clear), a term that was applied during the Roman Republic to a legal verdict of "not proven".Voltaire's depiction of Leibniz's ideas was so influential that many believed it to be an accurate description.Thus Voltaire and his "Candide" bear some of the blame for the lingering failure to appreciate and understand Leibniz's ideas.