In 2003 I published a survey of Wittgenstein’s lectures in Public and Private Occasions. Much has been learned about his lectures since then. This paper revisits the earlier survey and provides additional material and corrections, which amount to over 25%. In case it is useful, I have provided interlinear pagination from the original publication.

The philosophy of Karl Popper (1902–94) has gained a range of interest and reaction far wider than that normally received by professional philosophers; in recent times only Bertrand Russell (1872–1970) obtained comparable (probably still greater) attention. Convinced that philosophical problems and issues came from outside philosophy itself, especially science, Popper addressed a broad audience. However, he also entered the professionals’ field, and indeed attacked some major epistemological tenets held there, such as the assumption that knowledge was accreted by the inductive (...) accumulation and classification of facts. The response to Popper’s work has created interest in his life, which was known as falling in three periods: birth and early career in Vienna, followed by nearly a decade in New Zealand, and finally a rather reclusive lifestyle in Britain after the Second World War. This book, devoted to the first two periods, is the outcome of a long research effort by the author started well before Popper’s death and incorporating a doctorate received in 1993. His book shows the incompleteness of Popper’s autobiography of 1974, which hitherto has been our main source. (shrink)