System of Economical Contradictions; Or, The Philosophy of Misery
Pierre-Joseph Proudhon
Explaining Action by Emotion
Sabine A. Döring
Language, Saussure and Wittgenstein: How to Play Games with ...
Roy Harris
Benacerraf's Dilemma and Informal Mathematics
Gregory Lavers
Changing Planes
Ursula K. Le Guin