To find himself, or to find the service to which he could devote his great learning, seems to have been Milton's object after his return to London (1639). While he waited he began to educate his nephews, and enlarged this work until he had a small private school, in which he tested some of the theories that appeared later in his _Tractate on Education_. Also he married, in haste it seems, and with deplorable consequences. His wife, Mary Powell, the daughter of a Cavalier, was a pleasure-loving young woman, and after a brief experience of Puritan discipline she wearied of it and went home. She has been amply criticized for her desertion, but Milton's house must have been rather chilly for any ordinary human being to find comfort in. To him woman seemed to have been made for obedience, and man for rebellion; his toplofty doctrine of masculine superiority found expression in a line regarding Adam and Eve, "He for God only, she for God in him,"--an old delusion, which had been seriously disturbed by the first woman. [Illustration: JOHN MILTON] [Sidenote: PERIOD OF CONTROVERSY] For a period of near twenty years Milton wrote but little poetry, his time being occupied with controversies that were then waged even more fiercely in the press than in the field. It was after the execution of King Charles (1649), when England was stunned and all Europe aghast at the Puritans' daring, that he published his _Tenure of Kings and Magistrates_, the argument of which was, that magistrates and people are equally subject to the law, and that the divine right of kings to rule is as nothing beside the divine right of the people to defend their liberties. That argument established Milton's position as the literary champion of democracy. He was chosen Secretary of the Commonwealth, his duties being to prepare the Latin correspondence with foreign countries, and to confound all arguments of the Royalists. During the next decade Milton's pen and Cromwell's sword were the two outward bulwarks of Puritanism, and one was quite as ready and almost as potent as the other. [Sidenote: HIS BLINDNESS] It was while Milton was thus occupied that he lost his eyesight, "his last sacrifice on the altar of English liberty." His famous "Sonnet on his Blindness" is a lament not for his lost sight but for his lost talent; for while serving the Commonwealth he must abandon the dream of a great poem that he had cherished all his life: