In a letter Albert Einstein wrote to philosopher, Eric Gutkind, in 1954, he called religion a "childish superstition".
"The word God is for me nothing more than the expression and product of human weaknesses," he wrote, describing the Bible as a collection of honorable but still primitive legends."
Einstein also noted that he had a "deep affinity" for his Jewish heritage, but didn't believe that Jews are the "chosen people".
The letter was in a private collection for the past 50 years and was auctioned last week in London.
Unfortunately Einstein hadn't heard about the Church of the Flying Spaghetti Monster, so we can understand his lack of faith in religion.