Abstract
The philosophical thought of Nicolas Malebranche (1638-1713) does not constitute two aspects of a spirit or a man that is that of the man of God and that of the man of letters. Malebranche, as a successor of Descartes in the history of European philosophy, although God is not the wise for him but He is wisdom and science Himself. For Malebrache, God is the reason of the world. God, as a substantial source, is able to create the ideas of the spirit of man and motivate his body. However, there is an archetypal idea of soul which comes in front of the body. According to the mentioned metaphysical definition, God is not doubtable in soul which is related to his Word. Malebranche introduces a rationalism emerging the mathematical values to provide an accurate and justifiable idea for Godbecause the continuous search of truth within sciences and our fear of a false existence can find answers in the system of arithmetic and algebra. Therefore, Malebranche’s thought constitutes “an intellectual mystic” denoting the connection of logic and belief.