In this book, however, we must consider separately that aspect of the world from which we start, its aspect as knowable, and therefore, in the meantime, we must, without reserve, regard all presented objects, even our own bodies (as we shall presently show more fully), merely as ideas, and call them merely ideas.
Baina bitartean, lehen liburu honetan beharrezko da abiagunetzat daukagun munduaren alderdia finko kontsideratzea, ezagugarritasunaren alderdia, eta gero kontrakarrik gabe existitzen den edozein objektu, baita norbere soina bera ere (oso laster eztabaidatuko dugunez) errepresentazio gisara bakarrik kontsideratzea, errepresentazio huts izendatzea.