In this book, the thinker and philosopher Gustave Le Bon summarizes some of the ideas scattered in his various types of writings, and highlights them in the form of comprehensive issues. Because short formulas grab the heart and remain in the memory, which is why complete sentences have become widespread in the world of literature. The mind deals with most of the facts that are established by us, that is, the forms of information that appear in it in the form of brief ideas. People summarize their experiences in issues and wisdoms that provide examples, which are the summaries of the words of nations. A person thinks through the brief issues, and moves through his life driven by them. Because it exempts him from thinking for a long time before doing what he wants. A proverb is a summary of life and experiences that one should recall, because recalling them is recalling facts.