A History of Mediaeval Jewish Philosophy

Five Stages of Greek Religion

The French Revolution

A History of Indian Philosophy, Volume 1

The American Crisis

The Will to Doubt / An essay in philosophy for the general thinker

The Essays of Arthur Schopenhauer; Religion, a Dialogue, Etc

The Seven Great Monarchies Of The Ancient Eastern World, Vol 1: Chaldaea / The History, Geography, And Antiquities Of Chaldaea, Assyria, Babylon, Media, Persia, Parthia, And Sassanian or New Persian Empire; With Maps and Illustrations

The Positive Outcome of Philosophy / The Nature of Human Brain Work. Letters on Logic

The Seven Great Monarchies Of The Ancient Eastern World, Vol 5: Persia / The History, Geography, And Antiquities Of Chaldaea, Assyria, Babylon, Media, Persia, Parthia, And Sassanian or New Persian Empire; With Maps and Illustrations

COSMOS: A Sketch of the Physical Description of the Universe, Vol. 1