The book "Nicomachean Ethics. The first volume" is a fundamental work of the ancient Greek philosopher Aristotle, devoted to ethics and morality. In this book, the author analyzes the concepts of happiness, virtue, loyalty, justice and other aspects of ethics, based on his rich philosophical work and observation of the surrounding world. Aristotle seeks to establish how a person can achieve moral perfection and happiness through the correct direction of his actions and reasoning. Readers are invited to explore important issues related to ethical standards, justice, and personal development. Aristotle's book is not only a source of philosophical knowledge, but also an inspiration for thinking about the essence of morality and the importance of goodness in human life.