This text examines the concept of "Negative Platonism," introduced to the Czech philosophical context by Jan Patočka in the post-war period. While Patočka identifies as a Platonist, he criticizes the traditional interpretation of "ideas" as metaphysical objects or "hyper-things." Instead, he proposes understanding the idea as a non-object and a "non-thing." The text further compares this approach with Aristotle's concept of form (morphe). Although Aristotle diverges from Plato in significant ways, Patočka values his philosophical focus on movement and change. For Aristotle, form serves as a telos (goal) that is realized only through or upon the completion of movement. In this framework, movement itself is seen as evidence of incompleteness and imperfection, as a perfect world would have reached its goal and ceased to move. The abstract elucidates the ontological and dynamic aspects of Patočka's interpretation of ancient heritage and his unique contribution to modern phenomenology and metaphysics.