We have now felled forest enough everywhere, in many districts far too much. Let us restore this one element of material life to its normal proportions, and devise means for maintaining the permanence of its relations to the fields, the meadows and the pastures, to the rain and the dews of heaven, to the springs and rivulets with which it waters down the earth.
George Perkins MarshMan is everywhere a disturbing agent. Wherever he plants his foot, the harmonies of nature are turned to discords.
George Perkins MarshAll Nature is linked together by invisible bonds and every organic creature, however low, however feeble, however dependent, is necessary to the well-being of some other among the myriad forms of life.
George Perkins Marsh