This text examines Aristotle's concept of first philosophy and its relevance to contemporary philosophical thought. Aristotle identified three fundamental theoretical disciplines: physics, mathematics, and theology. The author analyzes whether these categories remain valid or require redefinition. Physics, focusing on entities in motion and subject to change, remains a vital discipline. However, mathematics has undergone a significant transformation; while traditionally viewed as the study of unchanging numbers and shapes, it now encompasses various types of motion and has largely moved beyond its original philosophical boundaries. The most critical assessment is reserved for Aristotelian theology. As a study of an entirely immobile God, it is presented as philosophically untenable in a modern context because absolute immobility equates to a lack of life. Ultimately, the text reflects on the shift from ancient traditions toward a modern scientific paradigm, where dynamics and change are prioritized over the static concepts of immutability that once formed the core of classical metaphysics.