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

Sight is a faculty; seeing is an art.

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.

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

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

Wherever modern Science has exploded a superstitious fable or even a picturesque error, she has replaced it with a grander and even more poetical truth.

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