Six weeks after his arrival in London, in the spring of 1801, Davy gave his first lecture, upon the history of galvanism, and the different modes of accumulating galvanic influence. "The sensation created by his first course of lectures at the Institution," says the _Philosophical Magazine_, "and the enthusiastic admiration which they obtained, is at this period hardly to be imagined. Men of the first rank and talent,--the literary and the scientific, the practical and the theoretical,--blue-stockings and women of fashion, the old and the young, all crowded, eagerly crowded, the lecture-room. His youth, his simplicity, his natural eloquence, his chemical knowledge, his happy illustrations and well conducted experiments, excited universal attention and unbounded applause. Compliments, invitations, and presents were showered upon him in abundance from all quarters; his society was courted by all, and all appeared proud of his acquaintance." He usually wrote his lecture the day before he delivered it, on this day dining in his own room, generally on fish. His manner in speaking was very animated, but natural. He believed in enthusiasm. He said, "Great powers have never been exerted independent of strong feelings. The rapid arrangement of ideas from their various analogies to the equally rapid comparisons of these analogies, with facts uniformly occurring during the progress of discovery, have existed only in those minds where the agency of strong and various motives is perceived--of motives modifying each other, mingling with each other, and producing that _fever of emotion_ which is the joy of existence and the consciousness of life." Coleridge used to say, "I attend Davy's lectures to increase my stock of metaphors." In the spacious and well supplied laboratory of the Institution, in making his experiments, says his brother, "his zeal amounted to enthusiasm, which he more or less imparted to those around him. With cheerful voice and countenance, and a hand as ready to manipulate as his mind was quick to contrive, he was indefatigable in his exertions. He was delighted with success, but not discouraged by failure; and he bore failures and accidents in experiments with a patience and forbearance, even when owing to the awkwardness of assistants, which could hardly have been expected from a person of his ardent temperament." He was very happy in these years of work. Says his brother: "In going to bed, and rising, and sometimes in the dead of night, I used to hear him, in a loud voice, reciting favorite passages in prose or verse, or declaiming some composition of his own, or humming some angler's song."