Cipolla’s 5 Laws of Human Stupidity

Carlo Cipolla's law of stupidity states that "always and inevitably everyone underestimates the number of stupid individuals in circulation." Even though Cipolla originally wrote about the principle and its consequences for society in the form of an amusing letter to his friends, it gained wide attention. Today Cipolla's law is often used to highlight the importance of critical thinking and careful decision making in order to counteract the potential effects of endemic ignorance.