About the author
Venerable Philippine Duchesne
Project Gutenberg · 2019
Project Gutenberg was the first provider of free electronic books, or eBooks. Michael Hart, founder of Project Gutenberg, invented eBooks in 1971 and …
On Certainty
Guangxi Normal University Press · 2002
On Certainty (Über Gewißheit) is a selection from the notebooks Wittgenstein kept during the last year and a half of his life (1949–1951), edited from…