Metaphysical Foundations of Natural Science

Metaphysics of Morals

Tuesdays With Morrie: The most uplifting book ever written about the importance of human connection

The Minor works of Kant

Kant's Three Critiques: The Critique of Pure Reason, The Critique of Practical Reason & The Critique of Judgment: The Base Plan for Transcendental Philosophy, The Theory of Moral Reasoning and The Critiques of Aesthetic and Teleological Judgment

On Perpetual Peace: A Philosophical Draft

Thus Spoke Zarathustra

Prolegomena to any Future Metaphysics

Kant’s Foundations of Ethics

Many Lives, Many Masters: The True Story of a Prominent Psychiatrist, His Young Patient, and the Past-Life Therapy That Changed Both Their Lives

Thoughts on the True Estimation of Living Forces

Universal Natural History and Theory of Heaven

Kant's Introduction to Logic and His Essay on the Mistaken Subtilty of the Four Figures

The Science of Mind: The Complete Edition

The False Subtlety of the Four Syllogistic Figures

Kant's Prolegomena to Any Future Metaphysics: Exploring the Boundaries of Human Knowledge in Kant's Critical Philosophy

The Only Possible Evidence for a Demonstration of God's Existence

Until the End of Time: Mind, Matter, and Our Search for Meaning in an Evolving Universe

Attempt to Introduce the Concept of Negative Quantities into World Wisdom