The Kingdom of God is Within You by Leo Tolstoy Chapter 3 Page 85

nowadays did continue to believe in miracles and did not read the Gospel, mere association with people of different forms of religion and faith, which happens so easily in these days, compels him to doubt of the truth of his own faith. It was all very well when a man did not see men of any other form of religion than his own; he believed that his form of religion was the one true one. But a thinking man has only to come into contact — as constantly happens in these days — with people, equally good and bad, of different denominations, who condemn each other's beliefs, to doubt of the truth of the belief he professes himself. In these days only a man who is absolutely ignorant or absolutely indifferent to the vital questions with which religion deals, can remain in the faith of the Church.

What deceptions and