Negri: The problem of politics seems to have always been present in your intellectual life. Your involvement in various movements (prisoners, homosexuals, Italian autonomists, Palestinians), on the one hand, and the constant problematizing of institutions, on the other, follow on from one another and interact with one another in your work, from the book on Hume through to the one on Foucault. What are the roots of this sustained concern with the question of politics, and how has it remained so persistent within your developing work? Why is the rela­tion between movement and institution always problematic? Deleuze: What I’ve been interested in…