Discourses (Books 1 and 2)
Epictetus
The Gay Science
Friedrich Nietzsche
Essay on the Freedom of the Will
Arthur Schopenhauer
Human, All-Too-Human
Friedrich Nietzsche
Critique of Pure Reason
Immanuel Kant
Fundamental Principles of the Metaphysics of Morals
Immanuel Kant
An Enquiry Concerning Human Understanding
David Hume
The Theory of Moral Sentiments
Adam Smith
The Analysis of Mind
Bertrand Russell
Some Thoughts Concerning Education
John Locke