emingly 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.

Another thing that I must earnestly warn you against is laziness; by
which more people have lost the fruit of their travels than, perhaps, by
any other thing. Pray be always in motion. Early in the morning go and
see things; and the rest of the day go and see people. If you stay but a
week at a place, and that an insignificant one, see, however, all that is
to be seen there; know as many people, and get into as many houses, as
ever you can.

I recommend to you likewise, though probably you have thought of it
yourself, to carry in your pocket a map of Germany, in which the
postroads are marked; and also some short book of travels through
Germany. The former will help to imprint in your memory situations and
distances; and the latter will point out many things for you to see, that
might otherwise possibly escape you, and which, though they may be in
themselves of little consequence, you would regret not having seen, after
having been at the places where they were.

Thus warned and provided for your journey, God speed you; 'Felix
faustumque sit! Adieu.

LETTER CLXVII

LONDON, May 27, O. S. 1752

MY DEAR FRIEND: I send you the inclosed origi