In 1825 his first important work, a 'Life of Schiller,' was published, and in 1826 he was married to Miss Jane Welsh. She was a brilliant but quiet woman, of social station higher than his; for some years he had been acting as counselor in her reading and intellectual development. No marriage in English Literature has been more discussed, a result, primarily, of the publication by Carlyle's friend and literary executor, the historian J. A. Froude, of Carlyle's autobiographical Reminiscences and Letters. After Mrs. Carlyle's death Carlyle blamed himself bitterly for inconsiderateness toward her, and it is certain that his erratic and irritable temper, partly exasperated by long disappointment and by constant physical misery, that his peasant-bred lack of delicacy, and his absorption in his work, made a perpetual and vexatious strain on Mrs. Carlyle's forbearance throughout the forty years of their life together. The evidence, however, does not show that the marriage was on the whole really unfortunate or indeed that it was not mainly a happy one.
For six years beginning in 1828 the Carlyles lived on (though they did not themselves carry on) the lonely farm of Craigenputtock, the property of Mrs. Carlyle. This was for both of them a period of external hardship, and they were chiefly dependent on the scanty income from Carlyle's laborious work on periodical essays (among which was the fine-spirited one on Burns). Here Carlyle also wrote the first of his chief works, 'Sartor Resartus,' for which, in 1833-4, he finally secured publication, in 'Fraser's Magazine,' to the astonishment and indignation of most of the readers. The title means 'The Tailor Retailored,' and the book purports to be an account of the life of a certain mysterious German, Professor Teufelsdröckh (pronounced Toyfelsdreck) and of a book of his on The Philosophy of Clothes. Of course this is allegorical, and Teufelsdröckh is really Carlyle, who, sheltering himself under the disguise, and accepting only editorial responsibility, is enabled to narrate his own spiritual struggles and to enunciate his deepest convictions, sometimes, when they are likely to offend his readers, with a pretense of disapproval. The Clothes metaphor (borrowed from Swift) sets forth the central mystical or spiritual principle toward which German philosophy had helped Carlyle, the idea, namely, that all material things, including all the customs and forms of society, such as government and formalized religion, are merely the comparatively insignificant garments of the spiritual reality and the spiritual life on which men should center their attention. Even Time and Space and the whole material world are only the shadows of the true Reality, the spiritual Being that cannot perish. Carlyle has learned to repudiate, and he would have others repudiate, 'The Everlasting No,' the materialistic attitude of unfaith in God and the spiritual world, and he proclaims 'The Everlasting Yea,' wherein are affirmed, the significance of life as a means of developing character and the necessity of accepting life and its requirements with manly self-reliance and moral energy. 'Seek not Happiness,' Carlyle cries, 'but Blessedness. Love not pleasure; love God.'