I think it would be worth the while to introduce a school of children to such [an oak grove], that they may get an idea of the primitive oaks before they are all gone, instead of hiring botanists to lecture to them when it is too late.
Henry David ThoreauNew York has her wilderness within her own borders; and though the sailors of Europe are familiar with the soundings of her Hudson, and Fulton long since invented the steamboat on its waters, an Indian is still necessary to guide her scientific men to its headwaters in the Adirondack country.
Henry David ThoreauHow rarely I meet with a man who can be free, even in thought! We all live according to rule. Some men are bedridden; all world-ridden.
Henry David Thoreau