Charles du Fay was a captain in the Guards, compelled by his misfortunes to confine himself to the battles of the book-sale. He lost a leg at the bombardment of Brussels in 1695; and though he was promoted to a company in the Guards, it became at last apparent that he could not serve on horseback. Du Fay, we are told, was fortunately fond of literature; and he devoted himself with eagerness to the task of collecting a magnificent library. History and Latin poetry had always been his favourite subjects, and it appears that he was already collecting fine examples in this department during his campaigns in Germany and Flanders. M. de Lincy commemorates the good taste that impelled Du Fay to buy several of Grolier's books, and records the industry with which he sought to remedy his defects of education. Professor Brochard, he says, was a learned man, with a good library of his own, who went to inspect the books gathered by Du Fay from all parts of Europe. The visitor expressed surprise that out of nearly four thousand volumes there should hardly be any in Greek. 'I have hardly retained a word of the language,' said Du Fay. 'Cato in his old age,' replied the Professor, 'did not hesitate for a moment to learn it; and a person quite ignorant of Greek can never know Latin well.' Du Fay was an easy good-natured man, and at once followed his friend's advice, beginning from that day to buy Greek books and to work at the language so as to be able to read them. His object, however, in forming a library was not so much to gather useful information as to set up a museum of literary rarities. The idea is in accordance with our modern taste, and perhaps with the common sense of mankind; but some of the old-fashioned collectors were angry with the poor epicure of learning. The President Bouhier writes to Marais in 1725 on seeing a catalogue of the library: 'This savours more of bibliomania than scholarship.' Marais at once replied: 'Your judgment on Du Fay's catalogue is most excellent: it is not a library, but a shop full of curious book-specimens, made to sell and not to keep for one's self.'