Philanthropist Jaimie Mayer will speak about the millennial generation and philanthropy during a lecture titled "Honoring Your Roots: Bridging the Generational Divide." The talk begins at 5 p.m. Wednesday, March 2, at USF Sarasota-Manatee's Selby Auditorium, 8350 N. Tamiami Trail, Sarasota. Free and open to the public, the talk is part of USF Sarasota-Manatee’s Knowledge-a-Bull Speaker Series. Mayer grew up around philanthropy as the great grand-daughter of Nathan Cummings, the founder of the Sara Lee Corporation. Mayer serves as a trustee with the Nathan Cummings Foundation.