"Gender and Character" is the work of the Austrian philosopher Otto Weininger, which became one of the most discussed works of the beginning of the 20th century. In the book, the author examines the concepts of gender, male and female principles, examines the relationship between them and the influence of gender on a person's character. Weininger tried to reveal the essence of interpersonal relationships and the role of gender in the formation of individuality. The book provoked controversy and stirred public opinion of its time, but it still remains relevant for the study of gender and philosophical issues. "Gender and Character" is a deep and insightful work that leaves the reader with many questions and makes one think about the complexity of sexual relations in society.