Audio, Avancé, De 10 à 30mn, Documentaire, English, Philosophie Ludwig Wittgenstein 16 March 2014 antoinevillette2013 In Five Parts. [youtube http://www.youtube.com/watch?v=videoseries?list=PLrvNoIltdG5gAMyHhI3ose8u0ogaJei0e&w=640&h=360]