It is true that logical demonstrations may become complete enough to defy dissent, but even from facts which force themselves upon the acceptance of every rational human being, different individuals will draw widely different inferences. That the mind of man may become a receptacle for irreconcilable doctrines is strikingly illustrated, by the simultaneous acceptance of the Old and New Testament of our heterogeneous scripture, and in the same way obstinate bigots manage to associate scientific truth and dogmatic absurdities. Darwin and Moses may occupy adjoining quarters in the fabric of the same cosmogony; the rule of three may become a passive concomitant of Trinitarian dogmas. The torch of truth may be permitted to flicker in a secluded recess of souls which refuse it the privilege of throwing its rays in certain directions. Education may fail to reclaim hereditary bigotry. In the winter of 1559 the rabble of Madrid assembled to witness the death of Don Carlos de Seso, a Spanish nobleman whose ancestors had fought at Granada and Toledo. His brother had been the favorite hunting-companion of Charles V.; one of his uncles had sacrificed his life in deciding the victory of Pavia; Don Carlos himself had acquired renown both as a soldier and a scholar, but in the latter capacity he had confessed his sympathy with certain doctrines of Martin Luther, and the Holy Inquisition had sentenced him to anticipate his doom in the flames of the stake. King Philip II. honored the _auto da fé_ with his presence, and frowned in a way which the condemned freethinker mistook for a disapproval of his sentence. “O King! can you thus witness the torture of your subjects?” exclaimed De Seso. “Deliver us from so cruel a death which even our enemies admit we have not deserved.” “I would help carrying faggots to burn my own son,” replied the King, “if he had incurred your unspeakable guilt.” Yet Philip the Second was one of the best-educated princes of his century. In mathematics, astronomy, ancient and modern languages, geography, and history, he was far better informed than Landgraf Philip of Hessen, who would have risked his own life to save that of a loyal cavalier.