<human>:  Why did Thoreau build his cabin on the banks of the Concord River?
<bot>: Thoreau wanted to live close to nature, and the Concord River was a short walk from his house. He also loved to write, and he wanted to have a place where he could do that. Thoreau’s cabin was located on a small island in the Concord River. It was an ideal place for him to write, because he had a river nearby and he could get away from people easily.