ABBREVIATIONS AND CONVENTIONS Strawson I Individuals (London: Methuen, 1959) Tolstoy WA What is Art? (Oxford: Oxford University Press, 1966) Wittgenstein BB The Blue and Brown Books (Oxford: Blackwell, 1958) CV Culture and Value (Oxford: Blackwell, 1980) NB Notebooks 1914–1916 (Oxford: Blackwell, 1961) OC On Certainty (Oxford: Blackwell, 1969) PG Philosophical Grammar, trans A Kenny (Oxford: Blackwell, 1974) PI Philosophical Investigations, trans G E M Anscombe (Oxford: Blackwell, 1953, 1997); part i cited by paragraph, part ii by page TLP Tractatus Logico-Philosophicus (London: Routledge, 1921, 1961); cited by paragraph Z Zettel (Oxford: Blackwell, 1967) 326