Empedocles: The Four Elements and Cosmic Cycles

Inward

Diogenes: The Cynic Who Lived in a Barrel

The Art of Loving

Structuralism: Philosophy and Patterns in Human Culture

The Courage to Be Disliked: The Japanese Phenomenon That Shows You How to Change Your Life and Achieve Real Happiness

Liberalism: Individual Liberty and the Modern State

The Devil's Notebook

Cynicism: Ancient Wisdom for a Modern World

Earth Awakens: Prophecy 2012–2030

Classical Greek Thinkers: Philosophical Foundations on Ethics, Society, and Metaphysics (5 in 1)

Leaves of Grass

Jean-Jacques Rousseau: The Social Contract and Natural Man

Political Philosophy: Ideas and Foundations of Governance

The Blank Slate: The Modern Denial of Human Nature

Anaxagoras: Mind and Cosmos in Ancient Greece

A Thousand Brains: A New Theory of Intelligence

Philosophies of Knowledge and Thought: Exploring New Insights into the Nature of Knowledge and Human Thought (5 in 1)

Essays in Humanism