The weather was unprecedented — weeks of damp and rain and fog. Everybody talked about it. One day during that spell I was holding forth to a practical farmer on the subject of hay. Full of book learning, I was explaining (rather too glibly) the advantages of cutting hay in June. I described in detail the vitamin loss incurred by letting hay stand in the field after it has matured, and how much greater the feed value was per unit weight in early-cut hay, even though the quantity might be slightly less. The farmer was a quiet man, with big hands for curling round a scythe handle. He listened attentively. My words swirled around his head like summer flies. Finally, when I had exhausted my little store of learning and paused for a moment, he ventured a reply.
‘The time to cut hay,’ he said firmly, ‘is in hayin’ time.’
— E.B. White, “Book Learning,” 1942