Human nature and the character of economic science : the historical background of the Misesian perspective / Israel M. Kirzner -- The hardest logic puzzle ever / George S. Boolos -- Saying and showing and the continuity of Wittgenstein's thought / Marie McGinn -- Text of texts / Luciano Berio -- Frege's theorem : an introduction / Richard G. Heck, Jr. -- What is the problem of measurement? / Simon Saunders -- Making sense of others : Donald Davidson on interpretation / William Taschek -- Analyticity and holism in Quine's thought / Peter Hylton -- On wanting to say, 'all we need is a paradigm' / Rupert Read -- Causation and ceteris paribus laws / Ned Hall -- The mysteries of self-locating belief and anthropic reasoning / Nick Bostrom -- Structuralism and the independence of mathematics / Michael D. Resnik -- The deep and suggestive principles of Leibnizian philosophy / Julian Barbour -- The modern neo-positivist : a tribute to W.V. Quine / Warren Goldfarb.