I originally was going to give my written lecture, but tossed it since it seemed better to let the time be more alive. Heidegger plays on the German Begriff while asking what philosophy means. Tied to greifen, to grip or seize, and begreifen, to comprehend or grasp something, Heidegger uses it performatively within the lecture: it’s a real drama he is attempting, to wrest his students from thinking of their arrival there between 5 and 6 pm (around the time I teach, coincidentally) as simply coming to learn a discipline, a set of concepts (die Begriffe) or representations, but to be seized, to be taken up by the Grundbegriffe or fundamental concepts of metaphysics: world, finitude, solitude.