Phenomenally, we can distinguish between ownership of thought (introspective awareness) and authorship of thought (an awareness of the activity of thinking), a distinction prompted by the phenomenon of thought insertion. Does this require the independence of ownership and authorship at the structural level? By employing a Kantian approach to the question of ownership of thought, I argue that a thought being my thought is necessarily the outcome of the interdependence of these two component parts (ownership and authorship). In addition, whilst (...) still employing a Kantian approach, I speculate over possible mechanisms underlying the phenomenon of thought insertion. (shrink)