Some of his boldest writing is found in Essays on Freethinking and Plainspeaking, '73. He has also written an important History of English Thought in the Eighteenth Century, '76, dealing with the deistic movement, and The Science of Ethics, '82, besides many literary works.
"A Biographical Dictionary of Freethinkers of All Ages and Nations"
Joseph Mazzini Wheeler
It was, in effect, a crude and popular statement of the deistic argument against Christianity.
"Brief History of English and American Literature"
Henry A. Beers
We see also that Cynicism was, in spite of its generally deistic spirit, sometimes leagued with real or affected religious sentiment.
"Roman Society from Nero to Marcus Aurelius"
Samuel Dill