"In summer we live out of doors, and have only impulses and feelings, which are all for action, and must wait commonly for the stillness and longer nights of autumn and winter before any thought will subside; we are sensible that behind the rustling leaves, and the stacks of grain, and the bare clusters of the grape, there is the field of a wholly new life, which no man has lived; that even this earth was made for more mysterious and nobler inhabitants than men and women. In the hues of October sunsets, we see the portals to other mansions than those which we occupy."

Source: Henry David Thoreau (2013). “Delphi Complete Works of Henry David Thoreau (Illustrated)”, p.1727, Delphi Classics