Colleges must teach their students the virtues of philanthropy if they hope to produce graduates who will give back to the institutions and to society at large, the philanthropist and businesswoman Sheila C. Johnson told attendees at The Chronicle's Presidents Forum here last week. "My hope," she continued, "is that today's graduates will set a new precedent for giving back--giving both more and more creatively than ours or any other generation before us." Ms. Johnson also urged colleges to support the arts, calling that area a "fundamental building block of a well-rounded education."