Have you read Demon Haunted World by Carl Sagan?

yes i read it .The Demon-Haunted World is a book by Carl Sagan intended to explain the scientific method to laypersons, and to encourage people to learn critical or skeptical thinking. It explains methods to help distinguish between ideas that are considered valid science, and ideas that can be considered pseudoscience. Sagan states that when new ideas are offered for consideration, they should be tested by means of skeptical thinking, and should stand up to rigorous questioning.