In Patrick O'Brian's "Master and Commander," the concept of patriotism is critiqued for its potential extremes. The notion that one must support their country without question is portrayed as problematic, suggesting that blind allegiance can lead to harmful outcomes. This view reflects a tension between loyalty to one's nation and the need for critical thinking regarding its actions.

The quote encapsulates the paradox of patriotism, describing two flawed approaches: one being an unthinking loyalty that ignores wrongdoings, and the other, an overly simplistic belief in the infallibility of one's country. O'Brian implies that true patriotism should involve a more nuanced understanding that holds a nation accountable while still valuing its principles.