Introduction; R. Egidi. I: Von Wright Interpreter of Wittgenstein and Analytic Tradition. Wittgenstein and Tradition; G.H. Von Wright. Wittgenstein and Our Times; C. Penco. What is Analytical Philosophy? C. Cozzo. `In the Beginning Was the Deed': The Private Language Argument; D. Pears. Naturalism, The World and Truth; M. Dell'Utri. What Wittgenstein Wrote; J. Schulte. Von Wright on `On Certainty'; A. Stroll. Morphology in Wittgenstein; M. Andronico. II: Modes of Practical Rationality: Actions, Intentions, and Will. Rationality and Norms: Kelsen and von Wright; G. Marramao. Actions, Causes, and Supervenience; S. Gozzano. The Logical Connection Argument Again; S. Nannini. Justice, Cooperation, and the `Golden Rule': Notes on `The Varieties of Goodness'; G. Frongia. Von Wright on Mind-Body Problem; M. De Caro. The Conflict between a Static and a Dynamic Theory of Time in Its Relation to von Wright's Work and to Human Freedom; M. Dorato. W. James' Defence of Free Will: a Step Toward a Paradigm Shift; R.M. Calcaterra. Is Determinism Impossible? P. Dessì. III: Philosophical Logic and Normative Discourse. The Significance of Philosophical Logic; D. Prawitz. A Remark about the Principle `Ought Entails Can': von Wright and Kant; M. Capozzi. The Decidability of Syllogism; C. Cellucci. Dynamic Ideas in Quantum Logic; M.L. Dalla Chiara, R. Giuntini. True Statements in Normative Discourse; E. Bulygin. `Norm Proposition': a Tentative Defence of a Sceptical View; T. Mazzarese. Three Levels of Deontics; A.G. Conte. `Sollen' between Semantics and Pragmatics; P. Di Lucia. SelectedBibliography. Index of Names. Index of subjects.