A Treatise Concerning the Principles of Human Knowledge

The Republic: Plato

Three Dialogues between Hylas and Philonous

The Virtue of Selfishness: A New Concept of Egoism

Philosophical Works, V. 1 (Of 4) – Audiobook: Philosophical Works, v. 1 of 4 by David Hume: Essays on Philosophy and Human Nature

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

Right and Wrong

An Essay Concerning Human Understanding

Language, Truth and Logic

The Book of Eels: Our Enduring Fascination with the Most Mysterious Creature in the Natural World

How We Think – Audiobook: How We Think: John Dewey's Exploration of Thought Processes

A Discourse Upon The Origin And The Foundation Of The Inequality Among Mankind

An Enquiry Concerning Human Understanding – Audiobook: An Enquiry Concerning Human Understanding: David Hume's Philosophical Inquiry into Human Knowledge and Reasoning

Critique of Practical Reason

The Non-Existence of the Real World

Understanding Beliefs

The Dawn of Day: Thoughts on the Prejudices of Morality

Nihilism

Guide to Chip Heath's & et al Made to Stick by Instaread

On the Fourfold Root of the Principle of Sufficient Reason