The paper works out an account of the piety proper to philosophical thought. The investigation proceeds as a critical interpretation of three enigmatic claims made by Martin Heidegger about ‘the piety of thinking,’ but the paper is not simply exegetical; the interpretive work is constantly in service of an attempt to think through the phenomenon independently. Plato’s Euthyphro and Nietzsche’s critique of scientific piety both hover in the background of Heidegger’s pronouncements, and they are given special attention here. Through the (...) investigation, philosophical piety is shown to be a virtuous capacity to respond with fitting submission to the truth as what is insurmountably prior to us. To respond fittingly is, at least, to deal well with sameness and difference, which in the case of piety means to recognize two features of our situation: that philosophical questioning necessarily arises out of a fundamental listening, or affirmation, and that we always belong to being but only ever across a gap. (shrink)