Faraday had given up business to devote himself to science, and he was not to be seduced from the purpose of making his life unselfish and doing things, not for money, but for the good of science and his own satisfaction. As a practical chemist, he soon had many opportunities to increase his salary by making analyses for industrial purposes. During one year, the amount of work thus offered him was paid for so well that it formed an addition of some £500 sterling to his salary. It took away precious time, however, that he might otherwise devote to original work. As soon as Faraday realized this possibility of interference with his scientific investigations, he cut it off, quite content to live on the modest salary of his position at the Royal Institution. His action in the matter would remind one very much of Pasteur, in the latter half of the century, when asked by the Empress Eugénie, to whom he had been just exhibiting his discoveries in fermentation, whether he would not apply these to actual manufacture and so make a fortune for himself in brewing. Pasteur replied that he thought it unworthy of a French scientist to devote his time to money-making, with all the world of science open before him.[29] With a conscientious patriotism, however, that was typical of the man and his ways, there was one exception to this rule of not taking outside work that Faraday made. In a letter to Lord Auckland, long afterward, he says: "I have given up for the last ten years or more, all professional occupation and voluntarily resigned a large income, that I might pursue in some degree my own objects of research. But in doing this I have always, as a good subject, held myself ready to assist the government if still in my power, but not for pay; for, except in one instance (and then only for the sake of the person joined with me), I refused to take it. I have had the honor and pleasure of application, and that very recently, from the Admiralty, the Ordnance, the Home Office, the Woods and Forests and other departments, all of which I have replied to and will reply to as long as strength is left me."