Non-fiction

Immanuel Kant

Foundations of the Metaphysics of Morals

David Hume

An Inquiry Concerning Human Understanding

Lucretius

On the Nature of the Universe

Alexis de Tocqueville

Democracy in America, Volume II

Louis Engel and Brendan Boyd

How to Buy Stocks

George Santayana

Persons and Places: The Background of My Life

Michael Curtis

The Great Political Theories, Volume 1

Voltaire

Candide: A Norton Critical Edition

C.S. Lewis

Mere Christianity

The Laws

Sir Isaac Newton

Opticks

Sun Tzu

The Art of War (Barnes & Noble Classics)