The aim of this article is to demonstrate that even if Popper’s and Patočka’s interpretations of Plato originate in philosophical and intellectual traditions that have nothing or very little to do with each other, they share a common target, that is, modern biopower, which culminated in twentieth-century totalitarianism. If we examine Popper’s and Patočka’s interpretations of Plato from a biopolitical angle, it is possible to view them in a new light, that is, as two different, even opposing, intellectual and philosophical (...) approaches to the very same tragic events that European culture and politics experienced in the twentieth century. Despite the radically divergent results of their readings, Popper and Patočka share a starting point, that is, the effort to outline a genealogy of European cultural and intellectual history in the light of Plato. The first section of this article explains why and to what extent Popper’s and Patočka’s interpretations can be considered genealogical readings. The second section elaborates on their different approaches to the relationship between justice and power in Plato. The third section concentrates on the relationship between Plato and twentieth-century biopower. (shrink)