Daniel Boone was born in the United States in 1734. He didn't go to school and couldn't read, although he learned all about the forests, streams and hunting. He could move silently like an Indian leaving no marks. He loved to live alone in the woods where nothing frightened him. When he grew up, he married and tried to settle down on a farm. A year later, however, he wasn't satisfied and decided to go into the unknown western lands, crossing the Appalachian Mountains. When he returned after two years, he became famous for his long journey. He brought valuable animal skins and told stories about the Indians. After this, he chose to keep travelling to unknown places. Once he lost to the Indians in battle and was taken away. The Indians liked him and became his friends. Daniel Boone died at the age of 86. He is remembered as an explorer and a pioneer who lived an exciting life in the early years of American nation. In this article, Daniel Boone is best described as   _   .
warm-hearted strong careful brave