This paper aims to incorporate Mario Dal Pra’s thought within the tradition of transcendental philosophy. Despite not being widely regarded within this canon, Dal Pra’s ‘transcendentalism of praxis’ should be considered an important case study on the relationship between transcendental and political/historicalphilosophical practices. This article investigates Dal Pra’s thought during his early years (from 1948 to 1954) as the main editor of the Rivista di storia della filosofia, focusing on three thematic cores. First, the theoretical difference between “transcendentalism of praxis” and so-called “theoretical philosophies” is presented. Secondly, a contrast is highlighted between the historiographical-philosophical methodologies that result from these two models of philosophy. Thirdly, the political outcome of these philosophical trajectories is explored, focusing on the difference between conservative thinking and philosophy as a politics of liberation. In conclusion, a general interpretative proposal is made on the relationship between transcendental philosophy, the practice of philosophy, and political practices.