This reflection examines Aristotle's concept of "absolute knowledge" as defined in the Posterior Analytics. Aristotle asserts that the object of such knowledge is that which cannot be otherwise, closely linking it to the understanding of causality. However, the text highlights a problematic aspect of this definition: while the causal connection may be perceived as necessary, the cause itself may remain contingent or "accidental." In this regard, Aristotle reveals himself as a follower of Plato, attempting to distance himself through the emphasis on causality. Without this element, his system would remain confined to immutable Platonic Ideas, similar to the relations found in mathematics or geometry. Furthermore, the author points out a connection to Democritean atomism, as the pursuit of absolute knowledge regarding particulars inevitably leads to isolated "ultimate causes." The text thus critically explores the limits of Aristotelian epistemology and its historical grounding in ancient philosophy, positioned between Platonic idealism and Democritean materialism.