You can hardly convince a man of an error in a lifetime, but must content yourself with the reflection that the progress of science is slow. If he is not convinced, his grandchildren may be.
Henry David ThoreauAs you simplify your life, the laws of the universe will be simpler; solitude will not be solitude, poverty will not be poverty, nor weakness weakness.
Henry David ThoreauNature must be viewed humanly to be viewed at all; that is, her scenes must be associated with humane affections, such as are associated with one's native place. She is most significant to a lover. A lover of Nature is preeminently a lover of man. If I have no friend, what is Nature to me? She ceases to be morally significant. . .
Henry David ThoreauNature abhors a vacuum, and if I can only walk with sufficient carelessness I am sure to be filled.
Henry David Thoreau