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All observations are liable to error; no telescope is perfect, no leveling instrument entirely trustworthy; no instrumental graduations are exact and no observer is infallible.
Horace H. Hayden
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It has been said that idleness is the parent of mischief, which is very true; but mischief itself is merely an attempt to escape from the dreary vacuum of idleness.
George Borrow
Horace H. Hayden
Creative Commons
Born:
October 13, 1769
Died:
January 25, 1844
(aged 74)
Bio:
Horace Henry Hayden D.D.S. was the first licensed American dentist and dentistry school founder.
Horace H. Hayden on Wikipedia
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