Another obstacle that helped to prevent the Egyptians from reaching the perfection which their early achievements seemed to promise, was their love for colour. They did not establish a sufficiently sharp line of demarcation between painting and sculpture. They always painted their statues, except when they carved them in materials which had a rich natural hue of their own, a hue to which additional vivacity was given by a high polish. By this means varied tints were obtained which were in harmony with the polychromatic decoration which was so near their hearts. Their excuse is to be found in their ignorance of statuary marble and of the clear and flesh-like tones and texture which it puts on under the sculptor's chisel. The Egyptians, however, never committed the fault of colouring their statues in an imitative fashion, like those who make wax figures. Their hues were always conventional. Moreover, they were never either broken or shaded, which is sufficient to show that no idea of realistic imitation was implied in their use.[325] Sculpture is founded upon an artificial understanding by which tangible form and visible colour are dissociated from each other. When the sculptor looks to the help of the painter he runs great risk of failing to give all the precision and beauty of which form by itself is capable, to his work. Even the Greeks did not grasp this truth at once. The Egyptians had at least a glimmering of it, and we must thank them for having employed polychromy in their sculpture in a discreet fashion. [325] CH. BLANC, _Voyage de la Haute-Égypte_, p. 99. § 10. _The General Characteristics of the Egyptian Style._ We have attempted to give an idea of the origin of Greek sculpture, of its development and its decadence. We have noticed those slow changes of taste and style which sometimes required a thousand years for their evolution, for a century in Egypt was hardly equal to a generation elsewhere. After proving that Egypt did not escape the universal law of change, we studied the methods and conventions which were peculiar to her sculptors and impressed their works with certain common characteristics. The union of these characteristics formed the Egyptian style. We must now define that style, and attempt to make its originality clear to our readers.