The beauty of the little piece depends upon the infinitely delicate art which depicts each charmingly absurd, minute transition in the process of delusion, misunderstanding, bewilderment, and explanation, with all the varieties of their interactions and shimmering personal shades. It would be difficult to find a more exquisite example of tender and discriminating fidelity to the loveliest qualities in human nature than the scene in which Silvia realizes at last that she is in love--and with whom. 'Ah! je vois clair dans mon coeur!' she exclaims at the supreme moment; and the words might stand as the epitome of the art of Marivaux. Through all the superfine convolutions of his fancies and his coquetries he never loses sight for a moment of the clear truth of the heart. While Marivaux, to use Voltaire's phrase for him, was 'weighing nothings in scales of gossamer', a writer of a very different calibre was engaged upon one of the most forcible, one of the most actual, and one of the hugest compositions that has ever come from pen of man. The DUC DE SAINT-SIMON had spent his youth and middle life in the thick of the Court during the closing years of Louis XIV and the succeeding period of the Regency; and he occupied his old age with the compilation of his _Mémoires_. This great book offers so many points of striking contrast with the mass of French literature that it falls into a category of its own; no other work of the same outstanding merit can quite be compared to it; for it was the product of what has always been, in France, an extremely rare phenomenon--an amateur in literature who was also a genius. Saint-Simon was so far from being a professional man of letters that he would have been shocked to hear himself described as a man of letters at all; indeed, it might be said with justice that his only profession was that of a duke. It was as a duke--or, more correctly, as a _Duc et Pair_--that, in his own eyes at any rate, he lived and moved and had his being. It was round his position as a duke that the whole of his active existence had revolved; it was with the consciousness of his dukedom dominating his mind that he sat down in his retirement to write his memoirs. It might seem that no book produced in such circumstances and by such a man could possibly be valuable or interesting. But, fortunately for the world, the merit of books does not depend upon the enlightenment of authors. Saint-Simon was a man of small intellect, with medieval ideas as to the structure of society, with an absurd belief in the fundamental importance of the minutest class distinctions, and with an obsession for dukedoms almost amounting to mania: but he had in addition an incredibly passionate temperament combined with an unparalleled power of observation; and these two qualities have made his book immortal.