Try not thinking of peeling an orange. Try not imagining the juice running down your fingers, the soft inner part of the peel. The smell. Try and you can't. The brain doesn't process negatives. ↗
All over London as one walks, one everywhere, in the season, sees oranges to sell; and they are in general sold tolerably cheap, one and even sometimes two for a halfpenny; or, in our money, threepence. ↗