The Author: Nikolay Milkov was born in 1953 in Varna, Bulgaria. After studying Philosophy at the University of Sofia (1974-78), he did post-graduate work in history of Philosophy at the University of Moscow (1979-83). Since 1983 N. Milkov is a Research Fellow at the Bulgarian Academy of Sciences. In 1988 he translated L. Wittgenstein's Tractatus, PI and RFM into Bulgarian. From 1989 until 1996 Milkov was a Guest Research Fellow at the University of Bielefeld, Germany. He is the author of Kaleidoscopic Mind: An Essay in Post-Wittgensteinian Philosophy, Amsterdam: Rodopi, 1992.