Humanism

Principles of nature

The Colloquies, Volume 2

Debating Humanism

Two Dyaloges (c. 1549)

A Handbook of Freethought Containing in Condensed and Systematized Form a Vast Amount of Evidence Against the Superstitious Doctrines of Christianity

Morality Without God

A dialoge or communication of two persons

The philosophy of Elbert Hubbard

Dangerous Dilemmas: Startling but True

A Very Pleasaunt & Fruitful Diologe Called the Epicure

An Address to Men of Science

A Plea for Atheism

Man's Redemption of Man: A Lay Sermon

Ingersollia

The works of Mr. Thomas Brown

Is the Morality of Jesus Sound

The Drama of Love and Death: A Study of Human Evolution and Transfiguration

The Destiny of Man, Viewed in the Light of His Origin

Philistine and genius

Rameau's Nephew (in a new translation by Ian C. Johnston)