Galileo Galilei owns the words: "The book of nature is written in the language of mathematics." Almost four centuries later, we never tire of being surprised that mathematical methods are perfectly suited to describe our world. Even more amazing are the natural science discoveries made on the basis of mathematical analysis of equations. Creating any complex design - from an ingenious road junction to a quantum computer - is fraught with mathematical calculations. For a full understanding of the action of gravity or quantum phenomena, we also cannot do without mathematics. But it seems so complicated and confusing! How to stop being afraid of formulas and love mathematics? Why is it so effective in the natural sciences? Is there a limit to this, or, conversely, for a deeper understanding of nature, you will have to create mathematical constructions that no longer fit in the head of a person? All these questions are touched upon on the pages of the book, and their artistic comprehension is presented in a series of drawings by the artist Rostan Tavasiev. Many of them are impossible to find final unambiguous answers. But we continue to discuss them and try to understand how this world works. To do this, you will need to overcome the division into "two cultures": "humanitarians" and "naturalists." Let's try to take another step in this direction.