That it was their intention to use their walls for historical and descriptive sculptures and writing, precisely in the same way in which we use a canvas for a picture, or a sheet of paper for writing, or printing, is undoubted, because every square foot of space of this kind they had created, in the great buildings they erected, is invariably used in this way. And that this, and the other motives I have assigned, decided them in employing such enormous blocks of stone, is equally undoubted, because they are obvious reasons, and no other reason can be imagined for inducing them to go to so much expense. The size of the building was decided by the amount of wall-space they required for the records they wished to place upon it; and the size of the stones by their estimate of what would be sufficient to ensure their record against the destroying hand, both of time and of man. Had the arts of printing, and of making cheap durable materials to print upon, been known in those days, these monuments would never have been constructed: the motive would have been wanting. Two methods were used for presenting the record to the eye, hieroglyphical writing and sculpture. Here, again, the idea that originated the monument is manifested. Those who could not understand the writing would be able to understand, at all events, the sculptures. The time might come when none would understand the writing, then the sculptures might still be depended on confidently for supplying the desired record. If the object was any other than that of securing an eternal record, why adopt these two methods? If it had been merely decoration that was in their thoughts, the sculptures would have been enough.