To us, who can be wise after the event, it is clear that if ever man was called not to science, nor to poetry, nor to theology, nor to metaphysics, but to literature, the art, so hard to define, of showing the ideas of all subjects in the double light of the practical and the spiritual reason, that man was Voltaire. He has himself dwelt on the vagueness of this much-abused term, without contributing anything more satisfactory towards a better account of it than a crude hint that literature, not being a special art, may be considered a kind of larger grammar of knowledge.[95] Although, however, it is true that literature is not a particular art, it is not the less true that there is a mental constitution particularly fitted for its successful practice. Literature is essentially an art of form, as distinguished from those exercises of intellectual energy which bring new stores of matter to the stock of acquired knowledge, and give new forces to emotion and original and definite articulation to passion. It is a misleading classification to call the work of Shakespeare and Molière, Shelley and Hugo, literary, just as it would be an equally inaccurate, though more glaring piece of classification, to count the work of Newton or Locke literature. To take another case from Voltaire, it would not be enough to describe Bayle’s Dictionary as a literary compilation; it would not even be enough to describe it as a work of immense learning, because the distinguishing and superior mark of this book is a profound dialectic. It forms men of letters and is above them.[96]