All manner of Bernouillis, Clairauts, high mathematical people, are frequent guests at Cirey: reverenced by Madame,--who indeed has had her own private Professor of Mathematics; one Konig from Switzerland (recommended by those Bernouillis), diligently teaching her the Pure Sciences this good while back, not without effect; and has only just parted with him, when she left on this Brussels expedition.

A BON GARCON, Voltaire says; though otherwise, I think, a little noisy on occasion.

There has been no end of Madame's kindness to him, nay to his Brother and him,--sons of a Theological Professorial Syriac-Hebrew kind of man at Berne, who has too many sons;--and I grieve to report that this heedless Konig has produced an explosion in Madame's feelings, such as little beseemed him.

On the road to Paris, namely, as we drove hitherward to the Honsbruck Lawsuit by way of Paris, in Autumn last, there had fallen out some dispute, about the monads, the VIS VIVA, the infinitely little, between Madame and Konig; dispute which rose CRESCENDO in disharmonious duet, and "ended," testifies M.de Voltaire, "in a scene TRESDESAGREABLE." Madame, with an effort, forgave the thoughtless fellow, who is still rather young, and is without malice.
But thoughtless Konig, strong in his opinion about the infinitely little, appealed to Maupertuis: "Am not I right, Monsieur ?" "HE is right beyond question!" wrote Maupertuis to Madame; "somewhat dryly," thinks Voltaire: and the result is, there is considerable rage in one celestial mind ever since against another male one in red wig and yellow bottom; and they are not on speaking terms, for a good many months past.
Voltaire has his heart sore ("J'EN AI LE COEUR PERCE") about it, needs to double-dose Maupertuis with flattery; and in fact has used the utmost diplomacy to effect some varnish of a reconcilement as Maupertuis passed on this occasion.

As for Konig, who had studied in some Dutch university, he went by and by to be Librarian to the Prince of Orange; and we shall not fail to hear of him again,--once more upon the infinitely little.