This book contains laws and principles drawn from everyday experience. The reader is certainly familiar with publications of this kind - such as “Murphy’s Laws”, “Peter’s Principle”, and others. With all due respect to these pioneering studies, one cannot help but notice that their authors were not overly interested in what was happening outside the English-speaking world. Fundamental laws discovered in other parts of the world, including our fatherland, remain unknown to the general public - which, however, is quite consistent with the Law of Meanness as the most universal law of existence. Here the Reader will find all the most important laws, postulates and principles for himself: 1) laws everyday; 2) social laws; 3) laws of science, art and religion. Some of them were discovered by the ancient Greeks and Romans, others were formulated by our contemporaries.