The book of the outstanding American scientist and public figure Paul Kurtz is devoted to the search for a method of knowledge and worldview adequate to modern science and culture. The work proposes an original concept of research skepticism, as well as a philosophical and practical paradigm of wisdom and a decent life - Eupraxophy. P. Kurtz's work is a continuation of the best traditions of American and world philosophy. Combining criticality and realism with optimism and decisiveness of judgments, the author substantiates the ways of thinking and the system of moral, political and existential values ​ ​ that most meet the fundamental principles of the human being.