I arrived from the imperial dinner sorrowful and anxious, made my presence known and prepared myself to wait in patience the tedious minute or two which the _portier_ usually allowed himself to keep me tarrying--as a punishment. But this time there was no stage-wait; the door was instantly unlocked, unbolted, unchained and flung wide; and in it appeared the strange and welcome apparition of the _portier's_ round face all sunshine and smiles and welcome, in place of the black frowns and hostility that I was expecting. Plainly he had not come out of his bed: he had been waiting for me, watching for me. He began to pour out upon me in the most enthusiastic and energetic way a generous stream of German welcome and homage, meanwhile dragging me excitedly to his small bedroom beside the front door; there he made me bend down over a row of German translations of my books and said, "There--you wrote them! I have found it out! By God, I did not know it before, and I ask a million pardons! That one there, the 'Old Times on the Mississippi,' is the best book you ever wrote!" The usual number of those curious accidents which we call coincidences have fallen to my share in this life, but for picturesqueness this one puts all the others in the shade: that a crowned head and a _portier_, the very top of an empire and the very bottom of it, should pass the very same criticism and deliver the very same verdict upon a book of mine--and almost in the same hour and the same breath--is a coincidence which out-coincidences any coincidence which I could have imagined with such powers of imagination as I have been favored with; and I have not been accustomed to regard them as being small or of an inferior quality. It is always a satisfaction to me to remember that whereas I do not know, for sure, what any other nation thinks of any one of my twenty-three volumes, I do at least know for a certainty what one nation of fifty millions thinks of one of them, at any rate; for if the mutual verdict of the top of an empire and the bottom of it does not establish for good and all the judgment of the entire nation concerning that book, then the axiom that we can get a sure estimate of a thing by arriving at a general average of all the opinions involved, is a fallacy. [_Dictated Monday, February 10, 1907._] Two months ago (December 6) I was dictating a brief account of a private dinner in Berlin, where the Emperor of Germany was host and I the chief guest. Something happened day before yesterday which moves me to take up that matter again.