"This is June, the month of grass and leaves . . . already the aspens are trembling again, and a new summer is offered me. I feel a little fluttered in my thoughts, as if I might be too late. Each season is but an infinitesimal point. It no sooner comes than it is gone. It has no duration. It simply gives a tone and hue to my thought. Each annual phenomena is reminiscence and prompting. Our thoughts and sentiments answer to the revolution of the seasons, as two cog-wheels fit into each other. We are conversant with only one point of contact at a time, from which we receive a prompting and impulse and instantly pass to a new season or point of contact. A year is made up of a certain series and number of sensations and thoughts which have their language in nature. Now I am ice, now I am sorrel. Each experience reduces itself to a mood of the mind".
- Henry David Thoreau, Journal, June, 1857