Renaissance

The Philosophy of the Practical: Economic and Ethic

An Inquiry into the Human Mind: On the Principles of Common Sense

A Plea for Atheism

A Grammar of Freethought

Arrows of Freethought

Essays Upon Some Controverted Questions

Locke

Why I Do Not Believe in God

Practical Essays

A Brief History of Modern Philosophy

Superstition In All Ages

Good Sense

Letters to Eugenia; Or, A Preservative Against Religious Prejudices

Leibniz's New Essays Concerning the Human Understanding: A Critical Exposition

Modern Rationalism

Bacon's Essays, and Wisdom of the Ancients

Essays in Rationalism

The Observations of Professor Maturin

From Rome to Rationalismor: Why I Left the Church

Maxims and Reflections