Caroline Casey: Looking past limits. Pamela Meyer: How to spot a liar. Maurizio Seracini: The secret lives of paintings. Giles Duley: When a reporter becomes the story. Tavi Gevinson: A teen just trying to figure it out. Julia Bacha: Pay attention to nonviolence. Thandie Newton: Embracing otherness, embracing myself. Amy Purdy: Living beyond limits. Steve Jobs: How to live before you die.