The specialist literature has investigated extensively the link between Benjamin and German Romanticism and, less frequently, his relation to Kant. However, these contributions tend to take up these links separately, and therefore do not analyse in detail the process which begins with the theoretical sketches on Kant and concludes with the writing of the doctoral thesis on the Frühromantik. This paper argues that there is a marked continuity between the objectives which led Benjamin to plan, in the first place, his (...) doctoral investigation on Kant and those which were finally realized. I try to demonstrate that such continuity consists in a displacement of the problem of the justification of knowledge, from the field of the criticism of knowledge in general to a particular sphere: that of art criticism. In this shift the purpose of linking the justification of knowledge with a messianic philosophy of time and history is also preserved. (shrink)