This text explores the concept of ARCHÉ in early Greek philosophy, highlighting that while it was a fundamental theme, it often remained unthematized compared to concepts like PHYSIS. Drawing on Jan Patočka’s observation, the author notes that early philosophers frequently answered the question of the "origin" without formally posing it. Even when the specific term was not used—as seen in Plato’s Timaeus, where the plurality of ideas, the demiurge, and the formless flow function as principles—the underlying logic of ARCHÉ persisted. A key finding is the consensus among early thinkers that ARCHÉ must be understood as "being" (ens). Consequently, the source and beginning of all that exists were identified with something that is itself a being. This ontological assumption shaped how ancient philosophy approached the origin of reality, navigating the tensions between unity and multiplicity, as well as motion and stability, while grounding the source of all things in the nature of being itself.