Pulitzer Prize-winning author Thomas Friedman, foreign affairs columnist for The New York Times, will speak on the topic, “Sustainability as Freedom,” at 6:30 p.m. Thursday, Feb. 26, at ASU Gammage in Tempe. Friedman, whose appearance is part of the Wrigley Lecture Series, “will argue that what freedom was to our parents’ generation, sustainability is to this present generation,” according to an ASU statement. Admission is free, but RSVPs are required.