Alberto Angela guides us on a fascinating journey into our brain: one hundred billion cells that determine the birth of our thoughts, and also of our passions, pain and joy, as well as naturally governing every movement of the body. We go to the Modena Polyclinic to follow the 'first steps' of a human brain, starting with those signals that infants exchange with their mothers and which are a real dialogue made up of facial expressions, like a smile that recalls another . Let's then try to understand what also happens in the brain of a bonobo, given that our DNA is almost identical to that of monkeys. We show you the curious experiments done with a baby bonobo and a 2-year-old child to discover the similarities. Let's try to understand what creativity is and what it means to be brilliant. What happens in the brain of a creative person? Some scientists have addressed the problem by studying an exceptional "guinea pig", the musician Sting.