The quote by Benjamin Franklin suggests that one should be very observant and discerning before entering into marriage, taking careful note of potential issues and qualities in a partner. It indicates the importance of thorough evaluation during the courtship phase to ensure compatibility and shared values.

Conversely, the phrase "half shut afterwards" implies that once married, individuals often become more accepting and less critical of their partner's flaws, possibly leading to complacency. This reflects the shift in perception and expectations that can occur within a relationship after the initial excitement fades.