The USC Sidney Harman Academy for Polymathic Study guides its inquiries through four flexible pathways or QUADRANTS: (1) critical and integrative thinking; (2) study of the polymaths; (3) the tapestry of knowledge; and (4) communication. THE QUADRANT SERIES is open to all students and explores the core structure of the academy—the four quadrants—from a philosophical, historical, and practical point of view. Attendance at these sessions covering all four quadrants is required for certification as an Academy Fellow.