The possibility of this technical knowledge, at the service of artistic reproduction, is what has led minds astray to imagine the existence of an æsthetic technique of internal expression, which is tantamount to saying, a doctrine of the _means of internal expression,_ a thing that is altogether inconceivable. And we know well the reason of its inconceivability; expression, considered in itself, is a primary theoretic activity, and as such precedes practice and intellectual knowledge which illumines practice and is independent alike of both. It aids for its part to illumine practice, but is not illuminated by it. Expression does not possess _means,_ because it has not an _end_; it has intuitions of things, but it does not will and is therefore unanalysable into the abstract components of volition, means and end. Sometimes a certain writer is said to have invented a new technique of fiction or of drama, or a painter is said to have discovered a new technique of distributing light. The word is used here at hazard; because the so-called _new technique_ is really _that romance itself, or that new picture_ itself and nothing else. The distribution of light belongs to the vision of the picture itself; as the technique of a dramatist is his dramatic conception itself. On other occasions, the word "technique" is used to designate certain merits or defects in a work that is a failure; and it is euphemistically said that the conception is bad but the technique good, or that the conception is good but the technique bad. On the other hand, when we talk of the different ways of painting in oils, or of etching, or of sculpturing in alabaster, then the word "technique" is in its place; but in such a case the adjective "artistic" is used metaphorically. And if a dramatic technique in the æsthetic sense be impossible, a theatrical technique of processes of externalization of certain particular æsthetic works is not impossible. When, for instance, women were introduced on the stage in Italy in the second half of the sixteenth century, in place of men dressed as women, this was a true and real discovery in theatrical technique; such too was the perfecting in the following century of machines for the rapid changing of scenery by the impresarios of Venice.