This course reconstructs the Aristotelian-medieval mosaic of theories including physics, cosmology, theology, astronomy/astrology, optics, and physiology/medicine. We analyze the role of metaphysics in medieval science, including determinism/indeterminism, plenism/vacuism, finitism/infinitism, theism/deism, and teleology/mechanism. Finally, we explicate the Aristotelian-medieval method, by focusing on the notions of demonstrative truth, intuition, and deduction.