This paper explores the theme of sacrifice as it appears in the writings of the Czech philosopher Jan Patočka from the 1970s on the subjects of history, metaphysics, and techno-civilization. The paper argues that the theme of sacrifice is best understood as part of an engagement with the problem of post-metaphysical philosophy, largely inspired by but also directed against the position of Martin Heidegger. These reflections are also best understood in relation to totalitarian resistance, exemplified by the self-immolation of Jan (...) Palach in the wake of the Soviet invasion in 1968, which remains a constant, if unacknowledged presence in the background of these writings. The conception of sacrifice that emerges, in contrast to mythico-religious forms, breaks with a reliance on patterns of exchange and reward in favor of an expression of metaphysical freedom, and in turn provides the fulcrum for Patočka’s commentary on the possibility of a “demythologized” Christianity. (shrink)