Humanity is having an identity crisis of major proportions. People don't know who they are. And it's literally wreaking havoc across the world at this very instant. And St. John Paul II saw it coming. In fact, he provided the answers before many of the questions were even posed.

Expanding upon the work of St. Thomas Aquinas and others, he developed a philosophy of the person called, appropriately, "personalism." It's a way to make sense of who we are and the dignity each of us possesses.

Matthew Leonard and Dr. John Crosby, an eminent philosopher at Franciscan University of Steubenville, discuss the Holy Father's famous way of looking at the human person so that we can understand more deeply who we are…and help the world figure it out, too.