This volume collects previously unpublished contributions to the philosophy of science. What brings them together is a twofold goal: first and foremost, celebrating the name of Roberto Torretti, whose works in this and other areas have had -and continue to have- a significant impact on the international philosophy of science community; and second, the desire of advancing novel perspectives on various issues in the philosophy of science broadly construed. Roberto Torretti has made substantial contributions to current debates in the history and philosophy of science, the general philosophy of science, and the philosophy of physics and geometry. Among his landmark contributions, we find his investigations in the history and philosophy of geometry, as well as his systematic studies of Einstein's relativity theory. This volume convenes leading philosophers and early-career scholars compiling a fine collection of chapters addressing recent debates on Kantian philosophy of science, the general philosophy of science, and the history and philosophy of physics and mathematics.