"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."

Source : George Perkins Marsh, Stephen C. Trombulak (2001). “So Great a Vision: The Conservation Writings of George Perkins Marsh”, p.186, UPNE

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