Methinks I would share every creature’s suffering for the sake of its experience and joy. The song sparrow and the transient fox-colored sparrow,—have they brought me no message this year? Do they go to lead heroic lives in Rupert’s Land? They are so small, I think their destinies must be large. Have I heard what this tiny passenger has to say, while it flits thus from tree to tree? Is not the coming of the fox-colored sparrow something more earnest and significant than I have dreamed of? Can I forgive myself if I let it go to Rupert’s Land before I have appreciated it? God did not make this world in jest; no, nor in indifference. These migrating sparrows all bear messages that concern my life. I do not pluck the fruits in their season. I love the birds and beasts because they are mythologically in earnest. I see that the sparrow cheeps and flits and sings adequately to the great design of the universe; that man does not communicate with it, understand its language, because he is not one with nature. I reproach myself because I have regarded with indifference the passage of the birds; I have thought them no better than I.
— Henry David Thoreau (1817-1862), Journal, March 31, 1852.