All of us experience a sense of wonder at some point in our lives; perhaps you felt it after your first kiss, when you grasped the beauty of an equation, or when you first saw a cathedral. Faced with the demands of adulthood, however, we trade wonder for a sense of reality, which can bring unhappiness in its wake. Francesco Dimitri reveals how we can reclaim our wonder—not to become children again, but to become more fulfilled adults, better equipped to face the challenges of life.