in Thoreau’s Journal:

When I hear a robin sing at sunset, I cannot help contrasting the equanimity of Nature with the bustle and impatience of man. We return from the lyceum and caucus with such stir and excitement, as if a crisis were at hand; but no natural scene or sound sympathizes with us, for Nature is always silent and unpretending as at the break of day. She but rubs her eyelids.