David Masson, The Three Devils: Luther's, Milton's…
“ Soul, mind, spirit, these old and simple words are the strongest, the profoundest, the surest; age cannot antiquate them, nor science undo them; they last with the rocks, and still go beyond. But, having in view rather the operation than the cause, we find a use also in such alternative phrases as “mode of thinking,” “mode of feeling and thinking,” “habit of thought,” “moral and intellectual character or constitution,” and the like. ”
