From Laurence J. Peter (1919-1990), Canadian “heirarchiologist,” The Peter Principle (1968):
Sometimes I wonder whether the world is being run by smart people who are putting us on or by imbeciles who really mean it.
The Peter Principle is highly recommended. It is a short work that will change your thinking more than a library full of classics of organization and management theory. It’s better than an MBA degree, and a lot cheaper.