Explanation:
The third paragraph of “Economy” in Walden highlights contemplation of the cost and value of building his small house near Walden Pond. He reflects on the expenses incurred and emphasizes that instead of being overwhelmed by the financial burden, he found profound satisfaction in the spiritual and intellectual gains of his endeavor. Thoreau focuses on the intangible benefits of a simpler, self-sufficient life, suggesting that the true worth of his dwelling lies not in its monetary cost but in the meaningful and fulfilling existence it allows him to pursue.