Wagner's Tristan has often--even by Lichtenberger--been described as a philosophic work; and as abstract thought or philosophy, it is said, is foreign to art, a work which admits it must be condemned. Let us first understand what is meant by philosophy. It is surely a train of thought in the mind of the spectator, not in the object which he contemplates. Anything in the world may be the subject of philosophic thought, or may suggest it; there is plenty of philosophy to be drawn from a daisy, but we do not therefore call a daisy a philosophic flower. So, too, we may philosophize about Wagner's Tristan, but the philosophy is our own; it is not in the work.