Methodology

Studies and Exercises in Formal Logic

The Philosophy of Auguste Comte

A Student's Guide to Philosophy

Holistic Science

Reformed Logic

The Philosophy of Evolution

Germany's Freefall

An Historical Sketch of the Conceptions of Memory among the Ancients

Four Lectures on the English Revolution

The Books of Traditional Confucian Canon

The KEY to Unlocking the Law of Attraction

Novum organon renovatum

On Betrayal

Novum Organum; Or, True Suggestions for the Interpretation of Nature

The Problems of Philosophy

On Knowing

The Essential Works of Robert G. Ingersoll

On the Method of Zadig

Theory & History of Historiography