On graduation from Harvard in the class of 1821, following the traditions of his family, Emerson resolved to study to be a minister, and meantime helped his older brother William in the support of the family by teaching in a school for young ladies in Boston, that the former had successfully established. The principal was twenty-one and the assistant nineteen years of age. For school-teaching on the usual lines Emerson was not fitted, and his youth and shyness prevented him from imparting his best gifts to his scholars. Years later, when, in his age, his old scholars assembled to greet him, he regretted that no hint had been brought into the school of what at that very time "I was writing every night in my chamber, my first thoughts on morals and the beautiful laws of compensation, and of individual genius, which to observe and illustrate have given sweetness to many years of my life." Yet many scholars remembered his presence and teaching with pleasure and gratitude, not only in Boston, but in Chelmsford and Roxbury, for while his younger brothers were in college it was necessary that he should help. In these years, as through all his youth, he was loved, spurred on in his intellectual life, and keenly criticised by his aunt, Mary Moody Emerson, an eager and wide reader, inspired by religious zeal, high-minded, but eccentric. The health of the young teacher suffered from too ascetic a life, and unmistakable danger-signals began to appear, fortunately heeded in time, but disappointment and delay resulted, borne, however, with sense and courage. His course at the Divinity School in Cambridge was much broken; nevertheless, in October, 1826, he was "approbated to preach" by the Middlesex Association of Ministers. A winter at the North at this time threatened to prove fatal, so he was sent South by his helpful kinsman, Rev. Samuel Ripley, and passed the winter in Florida with benefit, working northward in the spring, preaching in the cities, and resumed his studies at Cambridge.