Montaigne, the French philosopher and essayist, whose writings have been translated into every modern tongue, like the musician Sacchini was marvellously fond of cats, and would not sit down to write without his favorite by his side. Thomas Moore required complete isolation when he did literary work, and shut himself up, as did Charles Dickens. He was a very slow and painstaking producer. Some friend having congratulated him upon the seeming facility and appropriateness with which a certain line was introduced into a poem he had just published, Moore replied, "Facility! that line cost me hours of patient labor to achieve." His verses, which read so smoothly, and which appear to have glided so easily from his pen, were the result of infinite labor and patience. His manuscript, like Tennyson's, was written, amended, rewritten, and written again, until it was finally satisfactory to his critical ear and fancy. "Easy writing," said Sheridan, "is commonly damned hard reading." Bishop Warburton tells us that he could "only write in a hand-to-mouth style" unless he had all his books about him; and that the blowing of an east wind, or a fit of the spleen, incapacitated him for literary work; and still another English bishop could write only when in full canonicals, a fact which he frankly admitted. Milton would not attempt to compose except between the vernal and autumnal equinoxes, at which season his poetry came as if by inspiration, and with scarcely a mental effort.[75] Thomson, Collins, and Gray entertained very similar ideas, which when expressed so incensed Dr. Johnson that he publicly ridiculed them. Crabbe fancied that there was something in the effect of a sudden fall of snow that in an extraordinary manner stimulated him to poetic composition; while Lord Orrery found no stimulant equal to a fit of the gout!--all of which fancies are but mild forms of monomania. James Hogg (the Ettrick Shepherd) was only too glad to write without any of these accessories, when he could get any material to write upon. He used to employ a bit of slate, for want of the necessary paper and ink. The son of an humble Scottish farmer, he experienced all sorts of misfortunes in his endeavors to pursue literature as a calling. He was both a prose and poetic writer of considerable native genius, and formed one of the well-drawn characters of Christopher North's "Noctes Ambrosianæ." N. P. Willis in the latter years of his life was accustomed to ride on horseback before he sat down to write. He believed there was a certain nervo-vital influence imparted from the robust health and strength of the animal to the rider, as he once told the writer of these pages; and, so far as one could judge, the influence upon himself certainly favored such a conclusion.