In Herman Melville's "Pierre: or, the Ambiguities," the author reflects on the nature of men and their resilience, particularly among those who are less profound. He suggests that shallow individuals often remain optimistic and undeterred even in difficult times, akin to a bladder that remains buoyant despite adversity. Their superficiality acts as a shield against despair, allowing them to float above the depths of despair.

Conversely, Melville contrasts this with the fate of deeper characters, represented by a box of treasure. Once confronted with challenges, such profound individuals may succumb to despair, as they are more vulnerable to the weight of their experiences. This comparison highlights the tension between superficiality and depth, suggesting that while optimism can be a virtue of the shallow, true depth may come with its own burdens and challenges.