-Círculo de Viena (10 min): https://www.youtube.com/watch?v=RgoePmSMIlY
-Filos. contemporánea (C. Viena y Popper) 6 min: https://www.youtube.com/watch?v=ghCmrVWjFSQ
-La Filosofía de Wittgenstein (14 min): https://www.youtube.com/watch?v=vPFZw5UW__k
-Ludwig Wittgenstein (F. Savater YOUTUBE) 25 min: https://www.youtube.com/watch?v=B4zNmd5cENg
