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

Thus Spoke Zarathustra

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

On the Genealogy of Morality

The Courage to Be

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

Critical Thinking: Skills to Contemplate Life, Nature, the Human Race, and More

The Color of Happiness

Being and Nothingness

Philosophers: The Greatest Philosophers and Thinkers of the World

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

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

Stoicism: Learning about Stoicism, Skepticism, and Existentialism

A Theologico-Political Treatise/A Political Treatise

The Critique of Pure Reason, Volume 2

Existentialist Thinking: Skepticism and Existentialism Explained in Detail

Fear of Black Consciousness

Reason and Rationality

The Wisdom of Life, Counsels and Maxims