You can hardly convince a man of error in a life-time, but must content yourself with the reflection that the progress of science is slow. If he is not convinced, his grand-children may be. The geologists tell us that it took one hundred years to prove that fossils are organic, and one hundred and fifty more, to prove that they are not to be referred to the Noachian deluge.
Henry David ThoreauOne can hardly imagine a more healthful employment, or one more favorable to contemplation and the observation of nature.
Henry David ThoreauEach reader discovers for himself that, with respect to the simpler features of nature, succeeding poets have done little else than copy his similes.
Henry David Thoreau