Skeptical Thinking: Understanding Stoicism, Existentialism, and Other Philosophies in Life

Thus Spoke Zarathustra

Philosophy: Skeptical and Existential Thinkers from the Past

On the Genealogy of Morality

The History of Philosophy: Thoughts from Existentialism, Stoicism, and Skepticism

The Critique of Pure Reason, Volume 2

Existentialism: Figuring out the Meaning of Life and Ethics with the Great Philosophers

The Courage to Be

The Color of Happiness

Philosophers: The Greatest Philosophers and Thinkers of the World

Being and Nothingness

Skepticism: The Stoic, the Skeptic, and the Existentialist Thinkers of the World

Aristotle's Children: How Christian, Muslims and Jews Rediscovered Ancient Wisdom and Illuminated the Dark Ages

Stoicism: Learning about Stoicism, Skepticism, and Existentialism

A Theologico-Political Treatise/A Political Treatise

Existentialist Thinking: Skepticism and Existentialism Explained in Detail

Fear of Black Consciousness

The Existentialist's Survival Guide: How to Live Authentically in an Inauthentic Age

Reason and Rationality