Namque quemadmodum vectis, cum est longitudine pedum quinque, quod onus iiii hominibus extollit, id, qui est x, duobus elevat, eodem modo bracchia, quo longiora sunt, mollius, quod breviora, durius ducuntur.
For just as when a lever five feet long raises a load with four labourers, that same load is raised by two labourers when the lever is 10 feet long; so the longer arms are pulled down more easily, the shorter arms with more difficulty.
final_alignments\Vitruvius_Architecture_Book_10.json