principio esse aio persubtilem atque minutis perquam corporibus factum constare, id ita esse hinc licet advertas animum ut pernoscere possis: nil adeo fieri celeri ratione videtur quam sibi mens fieri proponit et inchoat ipsa; ocius ergo animus quam res se perciet ulla, ante oculos quorum in promptu natura videtur.
First I say that it is exceedingly delicate and formed of exceedingly minute particles. That this is so, you may consider the following points to convince you. Nothing is seen to be done so swiftly as the mind determines it to be done and does its own first act; therefore the mind bestirs itself more quickly than any of these things which are seen plain before our eyes.
final_alignments\Lucretius_De_Rerum_Natura_Book3.json