Abstract

Kant’s _Prolegomena_ is a piece of philosophical advertising: it exists to convince the open-minded “future teacher” of metaphysics that the true critical philosophy — i.e., the first _Critique_ — provides the only viable solution to the problem of metaphysics (i.e. its failure to make any genuine progress). To be effective, a piece of advertising needs to know its audience. This chapter argues that Kant takes his reader to have some default sympathies for the common-sense challenge to metaphysics originating from Thomas Reid and his followers; this fact in turn explains his rhetorical strategies in the _Prolegomena_, particularly regarding the presentation of the problem of metaphysics. The chapter draws attention to the importance of Shaftesbury, who, with a nod to Horace, had argued for the deployment of humour to disarm fraudulent claims to epistemic and moral authority. Kant looks to Horace himself to poke fun at the common-sense challenge to metaphysics, and from there to indicate the general shape of the particular argumentative strategies of the _Critique_ — that project that alone, in his view, can promise some kind of future for metaphysics.