A man in twenty-four hours converts as much as seven ounces of carbon into carbonic acid; a milch cow will convert seventy ounces, and a horse seventy-nine ounces, solely by the act of respiration. That is, the horse in twenty-four hours burns seventy-nine ounces of charcoal, or carbon, in his organs of respiration to supply his natural warmth in that time ..., not in a free state, but in a state of combination.
Michael FaradayLectures which really teach will never be popular; lectures which are popular will never really teach.
Michael FaradayThere is no more open door by which you can enter into the study of natural philosophy than by considering the physical phenomena of a candle
Michael Faraday