Hanover, Brunswick, Cassel, etc., are of the mixed kind, 'un peu decrottes, mais pas assez'. Another thing, which I most earnestly recommend to you, not only in Germany, but in every part of the world where you may ever be, is not only real, but seeming attention, to whoever you speak to, or to whoever speaks to you. There is nothing so brutally shocking, nor so little forgiven, as a seeming inattention to the person who is speaking to you: and I have known many a man knocked down, for (in my opinion) a much lighter provocation, than that shocking inattention which I mean. I have seen many people, who, while you are speaking to them, instead of looking at, and attending to you, fix their eyes upon the ceiling or some other part of the room, look out of the window, play with a dog, twirl their snuff-box, or pick their nose. Nothing discovers a little, futile, frivolous mind more than this, and nothing is so offensively ill-bred; it is an explicit declaration on your part, that every the most trifling object, deserves your attention more than all that can be said by the person who is speaking to you. Judge of the sentiments of hatred and resentment, which such treatment must excite in every breast where any degree of self-love dwells; and I am sure I never yet met with that breast where there was not a great deal: I repeat it again and again (for it is highly necessary for you to remember it), that sort of vanity and self-love is inseparable from human nature, whatever may be its rank or condition; even your footmen will sooner forget and forgive a beating, than any manifest mark of slight and contempt. Be therefore, I beg of you, not only really, but seemingly and manifestly attentive to whoever speaks to you; nay, more, take their 'ton', and tune yourself to their unison. Be serious with the serious, gay with the gay, and trifle with the triflers. In assuming these various shapes, endeavor to make each of them seem to sit easy upon you, and even to appear to be your own natural one. This is the true and useful versatility, of which a thorough knowledge of the world at once teaches the utility and the means of acquiring. I am very sure, at least I hope, that you will never make use of a silly expression, which is the favorite expression, and the absurd excuse of all fools and blockheads; I CANNOT DO SUCH A THING; a thing by no means either morally or physically impossible. I CANNOT attend long together to the same thing, says one fool; that is, he is such a fool that he will not. I remember a very awkward fellow, who did not know what to do with his sword, and who always took it off before dinner, saying that he could not possibly dine with his sword on; upon which I could not help telling him, that I really believed he could without any probable danger either to himself or others. It is a shame and an absurdity, for any man to say that he cannot do all those things, which are commonly done by all the rest of mankind.