"Ethics" by Benedict Spinoza is a fundamental work of moral philosophy that combines religious, metaphysical and ethical reflections. In this book, the author considers the concepts of God, nature and man, explores the essence of morality and the question of free will. Spinoza offers the reader a new perspective on morality and ethics based on understanding the universe as a whole. His analysis opens the reader to a deep and thorough understanding of moral principles that can be important for the development of self-development and self-observation.