Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A Few Questions

In his outstanding book "The Demon-Haunted World," Carl Sagan says this:How is it, I ask myself, that channelers never give us verifiable information otherwise unavailable? Why does Alexander the Great never tell us about the exact location of his tomb, Fermat about his Last Theorem, John Wilkes Booth about the Lincoln assassination conspiracy, Herman Goring about the Reichstag fire? Why don't Sophocles, Democritus, and Aristarchus dictate their lost books? Don't they wish future generations to have access to their masterpieces?