In the 3rd chapter of the book, at the very end of “What is belief?” part of this chapter, there is a thought: “Julius Caesar was a Roman emperor;”.
I would not normally point it out but this example of belief is unfortunate, because as I believe [ 
] Ceasar was not a Roman emperor, but rather “dictator in perpetuity” (http://en.wikipedia.org/wiki/Julius_Caesar), the first Roman emperor was Octavius (or Gaius Julius Caesar Augustus, http://en.wikipedia.org/wiki/Augustus).
Other than that - really great book, I love it so far 
.
