Man is everywhere a disturbing agent. Wherever he plants his foot, the harmonies of nature are turned to discords.

Man has too long forgotten that the earth was given to him for usufruct alone, not for consumption, still less for profligate waste.

Man is everywhere a disturbing agent. Wherever he plants his foot, the harmonies of nature are turned to discords.

The great question, whether man is of nature or above her.

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.

The improvement of forest trees is the work of centuries. So much more the reason for beginning now.

All 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.