This quote suggests that a thoughtful person, someone who is introspective and reflective, can feel isolated or detached even in the busiest and most populated of places. The "marketplace" Thoreau refers to is a metaphor for society or the public sphere, where people gather, interact, and exchange ideas. Despite being in the midst of such bustling activity, the thoughtful person becomes a "hermit" – a person who lives in solitude – because they are often lost in their own thoughts, contemplations, and observations.
This sense of solitude does not necessarily imply loneliness. It could be seen as a form of mental and emotional independence. The thoughtful person does not rely on the crowd for their thoughts and ideas, but rather forms their own based on careful observation and contemplation. They may be physically present in the crowd, but mentally and emotionally, they are in a space of their own.
In today’s world, this concept can be applied in numerous ways. We live in an age of constant connectivity and information overload, where we are constantly bombarded with ideas, opinions, and narratives from all directions. In such a scenario, it becomes even more important to be able to retreat into one’s own mental space, to process all this information, to form one’s own opinions, and to maintain one’s own unique perspective.
In terms of personal development, this quote underscores the importance of introspection and self-awareness. It encourages us to not merely absorb and accept the ideas and opinions we are exposed to, but to take the time to reflect on them, question them, and form our own understanding. It reminds us that it’s okay to be different, to be misunderstood, to stand apart from the crowd. This can lead to a stronger sense of self, greater confidence, and a more nuanced understanding of the world.