" For some months I had been ill in health, but was now convalescent, and, with returning strength, found myself in one of those happy moods which are so precisely the converse of ennui — moods of the keenest appetency, when the film from the mental vision departs — the αχλυς ος πριν επηεν — and the intellect, electrified, surpasses as greatly its every-day condition, as does the vivid yet candid reason of Leibnitz, the mad and flimsy rhetoric of Gorgias. Merely to breathe was enjoyment; and I derived positive pleasure even from many of the legitimate sources of pain. I felt a calm but inquisitive interest in every thing. "

― Edgar Allan Poe , The Man of the Crowd