Robert A. Heinlein Quote

There are hidden contradictions in the minds of people who "love Nature" while deploring the "artificialities" with which "Man has spoiled Nature.'" The obvious contradiction lies in their choice of words, which imply that Man and his artifacts are not part of "Nature" : but beavers and their dams are.

Time Enough for Love (ed. Penguin, 1987) - ISBN: 9781101503072