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Oh! speculators on things, boast not of knowing the things that
nature ordinarily brings about; but rejoice if you know the end of
those things which you yourself devise.
1
206.
Oh! speculators on perpetual motion how many vain projects of the
like character you have created! Go and be the companions of the
searchers for gold. [Footnote: Another short passage in MS. I,
referring also to speculators, is given by LIBRI (Hist, des
Sciences math. III, 228): Sicche voi speculatori non vi fidate
delli autori che anno sol col immaginatione voluto farsi interpreti
tra la natura e l'omo, ma sol di quelli che non coi cienni della
natura, ma cogli effetti delle sue esperienze anno esercitati i loro
ingegni.]
Against alchemists (1207. 1208).
1
207.
The false interpreters of nature declare that quicksilver is the
common seed of every metal, not remembering that nature varies the
seed according to the variety of the things she desires to produce
in the world.
938
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