What a messenger there; ambassador from star to star! Keyserling's report at Reinsberg is not given; but we have Grafigny's, which is probably the more impartial.

Keyserling's embassy was in the end of next year; [3d November, 1737 (as we gather from the Correspondence).] and there is plenty of airy writing about it and him, in these Letters.
Friedrich has translated the name KEYSERLING (diminutive of KAISER) into "Caesarion;"-- and I should have said, he plays much upon names and also upon things, at Reinsberg, in that style; and has a good deal of airy symbolism, and cloud-work ingeniously painted round the solidities of his life there.

Especially a "Bayard Order," as he calls it: Twelve of his selectest Friends made into a Chivalry Brotherhood, the names of whom are all changed, "Caesarion" one of them; with dainty devices, and mimetic procedures of the due sort.

Which are not wholly mummery; but have a spice of reality, to flavor them to a serious young heart.
For the selection was rigorous, superior merit and behavior a strict condition; and indeed several of these Bayard Chevaliers proved notable practical Champions in time coming;--for example Captain Fouquet, of whom we have heard before, in the dark Custrin days.

This is a mentionable feature of the Reinsberg life, and of the young Prince's character there: pleasant to know of, from this distance; but not now worth knowing more in detail.
The Friedrich-Voltaire Correspondence contains much incense; due whiffs of it, from Reinsberg side, to the "divine Emilie," Voltaire's quasi better-half or worse-half; who responds always in her divinest manner to Reinsberg, eager for more acquaintance there.