"It is the same with the quarrels about the Duke of Courland; one cannot attempt mediation except by consent of both parties. I believe I am not mistaken in supposing that the Court of Russia does not mean to terminate that business by foreign mediation. What I have heard about it (what, however, is founded only on vague news) is, That the Empress might prevail upon herself (POURRAIT SE RESOUDRE) to purchase from Bruhl the Principality of Zips [Zips, on the edge of Hungary; let readers take note of that Principality, at present in the hand of Bruhl,--who has much disgusted Poland by his voracity for Lands; and is disgorging them all again, poor soul!], to give it to Prince Karl in compensation: but that would lead to a negotiation with the Court of Vienna, which might involve the affair in other contentions. "I conjure you, Madam, I repeat it, Be not precipitate in anything; lest, as my fear is, you replunge Europe into the troubles it has only just escaped from! As to me, I have found, since the Peace, so much to do within my own borders, that I have not, I assure you, had time, Madam, to think of going abroad. I confine myself to forming a thousand wishes for the prosperity of your Electoral Highness, assuring you of the high esteem with which I am,--F." [_OEuvres de Frederic,_ xxiv. 48.] After some farther Letters, of eloquently pressing solicitation on the part of the Lady, and earnest advising, as well as polite fencing, on the part of Friedrich, the latter writes:-- FRIEDRICH TO ELECTRESS. "MADAM MY SISTER,--At this moment I receive a Letter from the Empress of Russia, the contents of which do not appear to me favorable, Madam, to your hopes. She requires (EXIGE) that I should instruct my Minister in Poland to act entirely in concert with the Count Kayserling; and she adds these very words: 'I expect, from the friendship of your Majesty, that you will not allow a passage through your territory, nor the entry into Poland, to Saxon troops, who are to be regarded there absolutely as strangers.' "Unless your Letters, Madam [Madam had said that she had written to the Empress, assuring her &c.] change the sentiments of the Empress, I do not see in what way the Elector could arrive at the throne of Poland; and consequently, whether I deferred to the wishes of the Empress in this point, or refused to do so, you would not the more become Queen; and I might commit myself against a Power which I ought to keep well with (MENAGER). I am persuaded, Madam, that your Electoral Highness enters into my embarrassment; and that, unless you find yourself successful in changing the Empress's own ideas on this matter, you will not require of me that I should embroil myself fruitlessly with a neighbor who deserves the greatest consideration from me.