Brigido, Edimar. “Metaphysical Subject and Empirical Subject: The Presence of Schopenhauer in Wittgenstein’s Philosophy”. Cognitio: Revista de Filosofia 20, no. 1 (September 10, 2019): 13–30. Accessed July 17, 2024. https://revistas.pucsp.br/index.php/cognitiofilosofia/article/view/39856.