Political

The Most Influential Works of Jean-Jacques Rousseau

A Legacy to the Friends of Free Discussion Principal Historical Facts and Personages of the Books Known as The Old and New Testament; With Remarks on the Morality of Nature

The German Idealists

The Essential Writings of Jean-Jacques Rousseau

The Complete Essays by Herbert Spencer (Vol. 1–3)

We

The Greatest Works of Thomas Paine: 39 Books in One Edition

Patriarcha, or the Natural Power of Kings

Civilization

The Political Philosophy of Hobbes

On Liberty

The Age of Reason

Oil and Ambition