What does philosophy give us if it is "useless" - and why is it precisely for this reason so beautiful? Where does philosophy begin? Often - with resistance to everyday logic. If it is "useless", does that mean it is only pursued by dreamers? The lecture offers a different perspective: philosophy as a practice of clear thinking, where questions are more important than quick answers. You will understand why Aristotle called philosophy "useless" and what exactly makes it beautiful: the freedom to ask questions about the meaning of life and fate. These topics concern everyone - not just academics. Then you will talk about how philosophical theories are structured. With simple steps, you will find it easy to start reading, and the texts will no longer intimidate you with their complexity. A separate block will cover practical benefits. What does philosophy give to an entrepreneur, a teacher, a researcher, a parent? It helps to notice contradictions, build arguments, and work with uncertainty. This skill is especially important in a world where there is a lot of information and little time. You will also discuss how to use philosophy in everyday communication: to argue productively, maintain respect for the opponent, and distinguish disagreement from conflict. Where to go in St. Petersburg, we tell on our website.