Great Philosophers Volume One: The Road to Inner Freedom, The Art of Philosophizing, and Pilgrimage to HumanityAlbert Schweitzer
10 Great Books of Religion and Philosophy: The Consolation of Philosophy, The Varieties of Religious Experience, The Age of Reason and othersThomas Paine
The Essential Baruch Spinoza: How to Improve Your Mind, The Road to Inner Freedom, and The Book of GodBaruch Spinoza
Ethics and On the Improvement of the Understanding (Barnes & Noble Digital Library)Benedict de Spinoza
Ethics (Complete Edition): Rationalist Philosophy and Moral Reasoning in the 17th CenturyBaruch Spinoza
Ethics: Exploring Reality and Ethics: A Rationalist Approach to Philosophy in the 17th CenturyBaruch Spinoza
On the Improvement of the Understanding: Exploring Spinoza's Rationalist Philosophy and the Pursuit of Intellectual EnlightenmentBenedictus de Spinoza
Ethics: Exploring Reality, Existence, and Ethics Through Rationalism and MetaphysicsBenedictus de Spinoza