-Ah, well said, sir. A libertine occupies the social place that many other men do not dare or cannot occupy ... they lack, or we lack, what we have to have.
The quote highlights the unique position of a libertine in society, suggesting that they embrace a freedom and boldness that others shy away from. This suggests that the libertine's choices and lifestyle reflect a certain courage or an ability to live authentically, which can be both admired and criticized by those who conform to societal norms.
Furthermore, the statement implies a contrast between libertines and more conventional individuals, emphasizing that some people may lack the qualities — such as confidence or desire for freedom — that enable a person to live a libertine lifestyle. The author, Arturo Pérez-Reverte, reflects on these differences to explore themes of morality, societal expectations, and personal choice.