An old man and a young man walk hand-in-hand through a crowded marketplace. The old man is dressed in a simple tunic and cloak, while the young man wears a more elaborate outfit. The marketplace is full of people of all ages and social classes. There are merchants selling their wares, shoppers haggling over prices, and people simply passing through. The old man and the young man stop to talk to a group of philosophers who are arguing about the nature of truth. The old man listens attentively to the philosophers' arguments, while the young man looks on in confusion.