Kant on Keeping a Secret

In this article I address the neglected question of what kind of act keeping a secret is, and what Kant had to say about secret keeping. First, I provide a definition of keeping a secret, improving upon Sissela Bok's definition. I distinguish between keeping a secret and deception, incorporating Thomas Nagel. Then, I discuss what Kant had to say about keeping a secret, and advance an Kantian argument for the moral permissibility of secret-keeping.