There's a book by Carl Sagan,
And that's a great book by Carl Sagan, The Demon Haunted World.
Sagan's very interesting though, because he also wrote the movie Contact,
There's another important book by Carl Sagan, which it's called, I'm not sure in English,
Carl Sagan himself used to say that when it comes to the Universe, human knowledge is still a grain of sand in the desert.