Quorum motus et virtutes duae res diversae et inter se dissimiles uti congruentes uti principia pariunt eos perfectus: una porrecti, quam Graeci eutheiam vocitant, altera rutunditatis, quam Graeci cycloten appellant.
Of these, the effective movements are two distinct and unlike things, although they are co-operating principles in producing their results. There is the principle of the straight line (which the Greeks call eutheia); and that of the circle (which the Greeks call cyclotes).
final_alignments\Vitruvius_Architecture_Book_10.json