The Age of Reason
Thomas Paine$5.14 Lowest Price Guarantee (click for details)
It is very interesting book, but for some people of that time something, what wasn't probably the standard opinion. Well, the book was written for some learned people, which means, that on real life it was without immediate influence. Well, I am someone, who believe,that some things are unexplainable without preposition, that exists some superior being or force, whether we call it God or by some other name.