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To David Rittenhouse Monticello in Albemarle, Virginia, July 19, 1778
DEAR SIR, -- I sincerely congratulate you on the recovery of
Philadelphia, and wish it may be found uninjured by the enemy -- how
far the interests of literature may have suffered by the injury or
removal of the Orrery (as it is miscalled) the publick libraries,
your papers & implements, are doubts which still excite anxiety. We
were much disappointed in Virginia generally on the day of the great
eclipse, which proved to be cloudy. In Williamsburgh, where it was
total, I understand only the beginning was seen. At this place which
is in Lat. 38 degrees-8' and Longitude West from Williamsburgh about
1 degrees-45' as is conjectured, eleven digits only were supposed to
be covered, as it was not seen at all till the moon had advanced
nearly one third over the sun's disc. Afterwards it was seen at
intervals through the whole. The egress particularly was visible.
It proved however of little use to me for want of a time piece that
could be depended on; which circumstance, together with the
subsequent restoration of Philadelphia to you, has induced me to
trouble you with this letter to remind you of your kind promise of
making me an accurate clock; which being intended for astronomical
purposes only, I would have divested of all apparatus for striking or
for any other purpose, which by increasing it's complication might
disturb it's accuracy. A companion to it, for keeping seconds, and
which might be moved easily, would greatly add to it's value. The
theodolite, for which I spoke to you also, I can now dispense with,
having since purchased a most excellent one.
Writing to a philosopher, I may hope to be pardoned for
intruding some thoughts of my own tho' they relate to him personally.
Your time for two years past has, I believe, been principally
employed in the civil government of your country. Tho' I have been
aware of the authority our cause would acquire with the world from
it's being known that yourself &
Doc't. Franklin were zealous friends
to it and am myself duly impressed with a sense of the arduousness of
government, and the obligation those are under who are able to
conduct it, yet I am also satisfied there is an order of geniusses
above that obligation, & therefore exempted from it, nobody can
conceive that nature ever intended to throw away a Newton upon the
occupations of a crown. It would have been a prodigality for which
even the conduct of providence might have been arraigned, had he been
by birth annexed to what was so far below him. Cooperating with
nature in her ordinary economy we should dispose of and employ the
geniusses of men according to their several orders and degrees. I
doubt not there are in your country many persons equal to the task of
conducting government: but you should consider that the world has but
one Ryttenhouse, & that it never had one before. The amazing
mechanical representation of the solar system which you conceived &
executed, has never been surpassed by any but the work of which it is
a copy. Are those powers then, which being intended for the
erudition of the world are, like air and light, the world's common
property, to be taken from their proper pursuit to do the commonplace
drudgery of governing a single state, a work which my be executed by
men of an ordinary stature, such as are always & everywhere to be
found? Without having ascended mount Sinai for inspiration, I can
pronounce that the precept, in the decalogue of the vulgar, that they
shall not make to themselves "the likeness of anything that is in the
heavens above" is reversed for you, and that you will fulfil the
highest purposes of your creation by employing yourself in the
perpetual breach of that inhibition. For my own country in
particular you must remember something like a promise that it should
be adorned with one of them. The taking of your city by the enemy
has hitherto prevented the proposition from being made & approved by
our legislature. The zeal of a true whig in science must excuse the
hazarding these free thoughts, which flow from a desire of promoting
the diffusion of knowledge & of your fame, and from one who can
assure you truly that he is with much sincerity & esteem Your most
obed't. & most humble serv't.
P. S. If you can spare as much time as to give me notice of
the receipt of this, & what hope I may form of my clocks, it will
oblige me. If sent to Fredericksburgh it will come safe to hand.
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