Thus Spoke Zarathustra -Friedrich Nietzsche

I taught it in class and my students loved it. It presents a different view on life and society. The theory of Superman and going beyond good and evil to proceed forward in human evolution.
The text is in form of sermons that Zarathustra delivers which makes it look like a religious book and that is so clever of Nietzsche how he uses the character of Prophet Zarathustra -who introduced ethics in ancient times- to go beyond good and evil.