Short Answer 
Comedies of manners emphasize character appearances over true morality, often satirizing aristocratic social norms while exploring the complexities of marriage. They also highlight the contrasts between rural and urban life, showcasing the comedic dynamics that arise from differing backgrounds and values.
The Emphasis on Appearances
In a comedy of manners, emphasis is placed on how characters present themselves rather than their true moral values. This often involves satire aimed at the aristocracy’s social norms, where superficial traits take precedence. The passage illustrates this by showcasing how qualities like wit and reputation are prioritized over genuine virtue.
Commentary on Marriage
Another significant element is the exploration of marriage, often depicted with a critical lens. Comedies of manners frequently address the complexities and absurdities of marital relationships, revealing underlying societal critiques. The passage reflects this by highlighting the importance of assessing marital dynamics and the roles individuals play within them.
Contrasts Between Country and City Life
Many comedies of manners also delve into the differences between rural and urban lifestyles. Though not overtly stated in the passage, this theme manifests through character interactions. The contrasting values and behaviors of individuals from different backgrounds serve to illuminate the unique challenges and comedic situations that arise from these social disparities.