In this paper I discuss one of the main topics of the debate on Transcendental Arguments that took place since the 1960s: the uniqueness of conceptual schemes; and I relate the conclusions to Kant’s philosophy. Firstly, I discuss Körner’s statement of the main points and terminology, followed by Schaper’s justification of an internal examination of our conceptual scheme. Then, I examine Davidson’s proposal to abandon the scheme-and-content dualism. Finally, I take into account some viewpoints of J. E. Malpas’, whose approach to the debate led him to a comparison between Davidson’s holism and Kant’s dualism that I would like to challenge.