Wittgenstein is one of the most prominent philosophers in the twentieth century; his views in both periods of his thinking have influenced many issues, including religion. His view on religion is expressed in his Tractatus Logico-Philosophicus. In terms of the picture theory of meaning and the distinction between the meaningless and meaningful propositions, he has made an attempt to show that the religious propositions are not meaningful as such. He holds that one should keep silent with regard to such propositions; and they express meaning only in our behavior and art and practice.