The doctrine which is here advanced is acknowledged to be new, and to many may appear strange. But I only demand for it the reception of a stranger; a favourable and attentive consideration, without that entire confidence which might be claimed under authoritative recommendation. After you have taken a figure, or any idea of a figure, from any of those great Painters, there is another operation still remaining, which I hold to be indispensably necessary--that is, never to neglect finishing from nature every part of the work. What is taken from a model, though the first idea may have been suggested by another, you have a just right to consider as your own property. And here I cannot avoid mentioning a circumstance in placing the model, though to some it may appear trifling. It is better to possess the model with the attitude you require, than to place him with your own hands: by this means it happens often that the model puts himself in an action superior to your own imagination. It is a great matter to be in the way of accident, and to be watchful and ready to take advantage of it: besides, when you fix the position of a model, there is danger of putting him in an attitude into which no man would naturally fall. This extends even to drapery. We must be cautious in touching and altering a fold of the stuff, which serves as a model, for fear of giving it inadvertently a forced form; and it is perhaps better to take the chance of another casual throw, than to alter the position in which it was at first accidentally cast. Rembrandt, in order to take the advantage of accident, appears often to have used the pallet-knife to lay his colours on the canvas, instead of the pencil. Whether it is the knife or any other instrument, it suffices if it is something that does not follow exactly the will. Accident in the hands of an artist who knows how to take the advantage of its hints, will often produce bold and capricious beauties of handling and facility, such as he would not have thought of, or ventured, with his pencil, under the regular restraint of his hand. However, this is fit only on occasions where no correctness of form is required, such as clouds, stumps of trees, rocks, or broken ground. Works produced in an accidental manner will have the same free, unrestrained air as the works of nature, whose particular combinations seem to depend upon accident.