"A library represents the mind of its collector, his
fancies and foibles, his strength and weakness, his
prejudices and preferences. Particularly is this the
case if, to the character of a collector, he adds -- or
tries to add -- the qualities of a student who wishes to
know the books and the lives of the men who wrote
them. The friendships of his life, the phases of his
growth, the vagaries of his mind, all are represented."