But since they are constructing a world and wish to speak the language of natural science, it is fair to make some examination of their physical theorics, but to let them off from the present inquiry; for we are investigating the principles at work in unchangeable things, so that it is numbers of this kind whose genesis we must study.
Izan ere, geldiak direnen printzipioen bila gabiltza; beraz, honelako zenbakien genesia ere ikertu behar dugu.