This language contains a perfectly clear description of the kingdom of Christ and of His title to spiritual sovereignty. His was not an empire of matter, but a realm of truth. His kingdom differed widely from that of Cæsar. Cæsar's empire was over the bodies of men; Christ's over their souls. The strength of Cæsar's kingdom was in citadels, armies, navies, the towering Alps, the all-engirdling seas. The strength of the kingdom of the Christ was and is and will ever be in sentiments, principles, ideas, and the saving power of a divine word. But, as clever and brilliant as he must have been, Pilate could not grasp the true meaning of the words of the Prophet. The spiritual and intellectual grandeur of the Galilean peasant was beyond the reach of the Roman lord and governor. In a cynical and sarcastic mood, Pilate turned to Jesus and asked: "What is truth?"[85] This pointed question was the legitimate offspring of the soul of Pilate and a natural product of the Roman civilization of his age. It was not asked with any real desire to know the truth; for he turned to leave the palace before an answer could be given. It was simply a blank response born of mental wretchedness and doubt. If prompted by any silent yearning for a knowledge of the truth, his conduct indicated clearly that he did not hope to have that longing satisfied by the words of the humble prisoner in his charge. "What is truth?" An instinctive utterance this, prompted by previous sad reflections upon the wrecks of philosophy in search of truth. We have reason to believe that Pilate was a man of brilliant parts and studious habits. His marriage into the Roman royal family argued not only splendid physical endowments, but rare intellectual gifts as well. Only on this hypothesis can we explain his rise from obscurity in Spain to a place in the royal family as husband of the granddaughter of Augustus and foster daughter of Tiberius. Then he was familiar, if he was thus endowed and accomplished, with the despairing efforts of his age and country to solve the mysteries of life and to ascertain the end of man. He had doubtless, as a student, "mused and mourned over Greece, and its search of truth intellectual--its keen and fruitless search, never-ending, ever beginning, across wastes of doubt and seas of speculation lighted by uncertain stars." He knew full well that Roman philosophy had been wrecked and stranded amidst the floating débris of Grecian thought and speculation. He had thought that the _ultima ratio_ of Academicians and Peripatetics, of Stoics and Epicureans had been reached. But here was a new proposition--a kingdom of truth whose sovereign had as subjects mere vagaries, simple mental conceptions called truths--a kingdom whose boundaries were not mountains, seas, and rivers, but clouds, hopes, and dreams.