Pettit defends a version of civic republicanism in political philosophy. His book Republicanism: A Theory of Freedom and Government provided the underlying justification for political reforms in Spain under José Luis Rodríguez Zapatero. Pettit detailed his relationship with Zapatero in his A Political Philosophy in Public Life: Civic Republicanism in Zapatero's Spain, co-authored with José Luis Martí.
Pettit holds that the lessons learned when thinking about problems in one area of philosophy often constitute ready-made solutions to problems faced in completely different areas. Views he defends in philosophy of mind give rise to the solutions he offers to problems in metaphysics about the nature of free will, and to problems in the philosophy of the social sciences, and these in turn give rise to the solutions he provides to problems in moral philosophy and political philosophy. His corpus as a whole was the subject of a series of critical essays published in Common Minds: Themes from the Philosophy of Philip Pettit (Oxford University Press, 2007).
Affiliations and honours
Fellow of the American Academy of Arts and Sciences (2009)
Honorary member of the Royal Irish Academy (2010)
Corresponding Fellow of the British Academy (2013)
Fellow of the Academy of the Social Sciences in Australia (1987)
Member of the scientific committee of the Fundacion IDEAS
Dimova-Cookson, Maria (2012), "Republicanism, philosophy of freedom, and the history of ideas: an interview with Philip Pettit.", in Browning, Gary; Dimova-Cookson, Maria; Prokhovnik, Raia (eds.), Dialogues with contemporary political theorists, Houndsmill, Basingstoke, Hampshire New York: Palgrave Macmillan, pp. 155–169, ISBN9780230303058