In his first chapter, "Economy," Thoreau introduces his purpose in writing the book, saying he intends to answer questions people have asked about his reasons for living alone in a cabin in the woods near Walden Pond for two years. He explains that most people live their lives as if sleeping, blindly following the ways of their parents, and become trapped into these lives by owning property and slaving in jobs to maintain their way of life. In contrast, he sought to discover the true necessities of life and built a cabin, for the cost of $28. 12 _ near Walden Pond, where he lived for two years, beginning in the summer of 1845. Making a profit of $8.71 _ by selling the beans he grew and working occasionally at odd jobs, he found he was able to support himself with very little work and much time for contemplation of himself and nature.