That virtue we appreciate is as much ours as another s. We see so much only as we possess.
Henry David ThoreauHe is not a true man of science who does not bring some sympathy to his studies, and expect to learn something by behavior as well as by application. It is childish to rest in the discovery of mere coincidences, or of partial and extraneous laws. The study of geometry is a petty and idle exercise of the mind, if it is applied to no larger system than the starry one. Mathematics should be mixed not only with physics but with ethics; that is mixed mathematics. The fact which interests us most is the life of the naturalist. The purest science is still biographical.
Henry David ThoreauWhen I consider that the noble animals have been exterminated here - the cougar, panther, lynx, wolverine, wolf, bear, moose, deer, the beaver, the turkey, etc, etc - I cannot but feel as I lived in a tamed, and, as it were, emasculated country.
Henry David Thoreau