Nietzsche, F: Beyond Good and Evil

Beyond good and evil ist a masterpiece, everybody should read this book at least once in his/her life. The fine interpretation of life regarding the pschychology of human behavior, religion and philosopher, that they make complex systems of thought to justify biases and assumption, where there is nothing like free Sprit. According to him thoughts and truths are always changeable. The definition of good and evil will change according to power and will. The must read book. I can only suggest.