Tractatus logico-philosophicusLudwig Wittgenstein, Isidoro Reguera Pérez, Ivo Hernández, Spanish, Charles Ogden, David Francis Pears, Brian McGuinness, Luis Manuel Valdés Villanueva, Bertrand Russell · First published 1921Open the Tome
Bemerkungen über die Grundlagen der MathematikLudwig Wittgenstein · First published 1956Open the Tome
Lectures & conversations on aesthetics, psychology, and religious beliefLudwig Wittgenstein · First published 1966Open the Tome
Preliminary studies for the "Philosophical investigations"Ludwig Wittgenstein · First published 1958Open the Tome
Conversations of Goethe with Eckermann and SoretJohann Wolfgang von Goethe, Johann Peter Eckermann, Otto Schönberger · First published 1828Open the Tome
