Celebrity graduation speakers: Wit and wisdom from John Legend, singer and musician, for University of Pennsylvania College of Arts and Sciences [more]

"Searching for the truth in many ways is the same as searching for your soul. Since I am touted as a soul singer, I'm often asked to define what soul is. Well, it's hard to define, but I'm sure that soulfulness and truth are very closely related. . Soul is about authenticity. Soul is about finding things in your life that are real and pure. The things that you know are at your core. The things you know you were put on this Earth to do."