Aristotle: A Very Short Introduction
Jonathan Barnes
The Essays of Arthur Schopenhauer; Religion, a Dialogue, Etc.
Arthur Schopenhauer
Rothbard Article Online; the Rothbardian Left Continues
Kevin Amos Carson
The Supernova Era
Liu Cixin
The World as Will and Representation, Vol. 2
Principia Ethica
G. E. Moore
The World as Will and Representation, Vol. 1
Essential Works of Lenin
Vladimir Ilyich Lenin
Economic and Philosophic Manuscripts of 1844
Karl Marx
Tractatus Logico-Philosophicus
Ludwig Wittgenstein
Discourse on Metaphysics and The Monadology
Gottfried Wilhelm Leibniz & George R. Montgomery