Variations on da Costa C Systems and dual-intuitionistic logics
Richard Sylvan
Das Disziplinlose Gehirn: Was nun Herr Kant?
Georg Northoff
Changing Planes
Ursula K. Le Guin
Introduction to Kant's Anthropology
Michel Foucault
Tractatus Logico-Philosophicus
Ludwig Wittgenstein
Economic and Philosophic Manuscripts of 1844
Karl Marx
Essential Works of Lenin
Vladimir Ilyich Lenin
Principia Ethica
G. E. Moore
The World as Will and Representation, Vol. 2
Arthur Schopenhauer
The World as Will and Representation, Vol. 1
Discourse on Metaphysics and The Monadology
Gottfried Wilhelm Leibniz & George R. Montgomery