This seminar introduces the students to foundational notions that determined the development of the science of psychology and the modern understanding of the psyche. The seminar goes through central way stations in the history of Western intellectual thought, starting with the birth of modern philosophy and ending with contemporary and postmodern thought. An emphasis is put on different perspectives on human nature, subjectivity, perception, consciousness, and the relationship between the individual and the social. The seminar presents several complimentary perspectives on the psyche and investigates their epistemological roots. Finally, the seminar aims to demonstrate the crucial value the intellectual foundations of the social sciences hold for practicing psychologists today.