Beginning of Essay
John Muir worked at a factory in Canada. He invented time and money saving machines for the factories. But one day an accident changed his whole outlook on life. As he was tightening a machine belt with a file, the file flew out and pierced his right eye. His ....

Middle of Essay
.... lands. This was known as the thousand-mile walk. During his journey, he would stop to collect plant samples and write about his observations in his journal. John was weak from the trip and thought that he would need much more energy to travel to South America. He decided to visit Yosemite Valley, where he would regain his strength. He took up the job as a herder there and began to explore the area. Then he got a job as guide to the Yosemite. Muir quickly became an expert on Yosemite. John believed that glaciers had helped in the formation of the valley. People began to pay attention to his ideas. Some agreed and some didn't. John spent ye ....