achievements of religious zeal in Francia, Perugino, Bellini, and such others. Take as an example in fresco Masaccio's hasty sketch of himself now in the Uffizii; and in oil, the two heads of monks by Perugino in the Academy of Florence; and we shall search in vain for any work in portraiture, executed in opaque colors, which could contend with them in depth of expression or in fullness of _recorded_ life--not mere imitative vitality, but chronicled action. And we have no hesitation in asserting that where the object of the painter is expression, and the picture is of a size admitting careful execution, the transparent system, developed as it is found in Bellini or Perugino, will attain the most profound and serene color, while it will never betray into looseness or audacity. But if in the mind of the painter invention prevail over veneration,--if his eye be creative rather than penetrative, and his hand more powerful than patient--let him not be confined to a system where light, once lost, is as irrecoverable as time, and where all success depends on husbandry of resource. Do not measure out to him his sunshine in inches of gesso; let him have the power of striking it even out of darkness and the deep. 133. If human life were endless, or human spirit could fit its compass to its will, it is possible a perfection might be reached which should unite the majesty of invention with the meekness of love. We might conceive that the thought, arrested by the readiest means, and at first represented by the boldest symbols, might afterwards be set forth with solemn and studied expression, and that the power might know no weariness in clothing which had known no restraint in creating. But dilation and contraction are for molluscs, not for men; we are not ringed into flexibility like worms, nor gifted with opposite sight and mutable color like chameleons. The mind which molds and summons cannot at will transmute itself into that which clings and contemplates; nor is it given to us at once to have the potter's power over the lump, the fire's upon the clay, and the gilder's upon the porcelain. Even the temper in which we behold these various displays of mind must be different; and it admits of more than doubt whether, if the bold work of rapid thought were afterwards in all its forms completed with microscopic care, the result would be other than painful. In the shadow at the foot of Tintoret's picture of the Temptation, lies a broken rock-bowlder.[19] The dark ground has been first laid in, of color nearly uniform; and over it a few, not more than fifteen or twenty, strokes of the brush, loaded with a light gray, have quarried the solid block of stone out of the vacancy. Probably ten minutes are the utmost time which those strokes have occupied, though the rock is some four feet square. It may safely be affirmed that no other method, however laborious, could have reached the truth of form which results from the