Guide for the Perplexed, Part 2, Introduction

TWENTY-FIVE of the propositions which are employed in the proof for the existence of God, or in the arguments demonstrating that God is neither corporeal nor a force connected with a material being, or that He is One, have been fully established, and their correctness is beyond doubt. Aristotle and the Peripatetics who followed him have proved each of these propositions. There is, however, one proposition which we do not accept—namely, the proposition which affirms the Eternity of the Universe, but we will admit it for the present, because by doing so we shall be enabled clearly to demonstrate our own theory.