The thin snow now driving from the north and lodging on my coat consists of those beautiful star crystals, not cottony and chubby spokes, but thick and partly transparent crystals. They are about a tenth of an inch in diameter, perfect little wheels with six spokes without a tire, or rather with six perfect little leaflets, fern-like, with a distinct straight and slender midrib, raying from the center….
How full of the creative genius is the air in which they are generated. I should hardly admire more if real stars fell and lodged on my coat.
—Henry David Thoreau
Thoreau On Man & Nature, page 6