Unlike a purely philosophical introduccón, the topics chosen in this work are closely related to psychological issues. In recent years, the spirit and philosophy of science theory have reached new knowledge based on foundations of psychology, which in turn faces psychological cuaestiones as: the "spirit" and "soul" are inventions man?, are the subjective experiences can be reduced to mental states?, what is the nature of mental states, what does the relationship between mind and brain?, is man truly free to choose? In these and other questions, Volker Gadenne attempts to answer through an interesting and clear tour of the cognitive science calls. Of interest to psychologists, philosophers, linguists, anthropologists, educators, cognitive scientists, neuroscientists and sociologists