As to his hospital work, it is clear that though his heart was not in it and his thoughts were prone to wander, and though he held and declared that poetry was the only thing worth living for, yet when he chose he could bend his mind and will to the tasks before him. The operations which as dresser he performed or assisted in are said to have proved him no fumbler. When he went up for examination before the Court of Apothecaries he passed with ease and credit, somewhat to the surprise of his fellow students, who put his success down to his knowledge of Latin rather than of medicine. Later, after he had abandoned the profession, he was always ready to speak or act with a certain authority in cases of illness or emergency, and though hating the notion of practice evidently did not feel himself unqualified for it so far as knowledge went. He could not find in the scientific part of the study a satisfying occupation for his thoughts; and though a few years later, when he had realized that there is no kind of knowledge but may help to nourish a poet's mind, he felt unwilling to lose hold of what he had learned as apprentice and student, he was never caught by that special passion of philosophical curiosity which laid hold for a season on Coleridge and Shelley successively, and drew them powerfully towards the study of the mechanism and mysteries of the human frame. The practical responsibilities of the profession at the same time weighed upon him, and he was conscious of a kind of absent uneasy wonder at his own skill. Once when Cowden Clarke asked him about his prospects and feelings in regard to his profession, he frankly declared his own sense of his unfitness for it; with reasons such as this, that 'the other day, during the lecture, there came a sunbeam into the room, and with it a whole troop of creatures floating in the ray; and I was off with them to Oberon and fairy-land.' 'My last operation,' he once told another friend, 'was the opening of a man's temporal artery. I did it with the utmost nicety, but reflecting on what passed through my mind at the time, my dexterity seemed a miracle, and I never took up the lancet again.'