"Morrie smiled. "Mitch, you asked about caring for people I don't even know. But can I tell you the thing I'm learning most with this disease?" What's that? "The most important thing in life is to learn how to give out love, and to let it come in." His voice dropped to a whisper. "Let it come in. We think we don't deserve love, we think if we let it in we'll become too soft. But a wise man named Levine said it right. He said, 'Love is the only rational act.' " He repeated it carefully, pausing for effect. " 'Love is the only rational act.' "