Gifford Pinchot (1865-1946) was an American forester and politician known for his role in the conservation movement. He served as the first Chief of the United States Forest Service from 1905 to 1910, where he promoted sustainable forestry practices and the responsible use of natural resources. Pinchot believed in the idea of managing forests for the greatest good for the greatest number of people over the longest time. In addition to his work in forestry, Pinchot was a key figure in the establishment of the National Parks system and advocated for the protection of public lands. He later served two non-consecutive terms as the Governor of Pennsylvania, where he continued to champion environmental conservation and progressive reforms.