In this way was empiricism first introduced as the sole source of principles, as far as all knowledge of the existence of things is concerned (mathematics therefore remaining excepted); and with empiricism the most thorough scepticism, even with regard to the whole science of nature( as philosophy).
-Horrela, lehenengoz gauzen existentziari dagokion (matematika salbuespen gisa geratu zen) ezagutza ororen kasuan enpirismoa ezarri zen printzipioen iturri bakar gisa, eta horrekin batera aldi berean eszeptizismo gogorrena natur zientzia osoari dagokionez (filosofia gisa).