E2P25D
Demonstration — Part II
Latin
Ideam affectionis corporis humani eatenus corporis externi naturam involvere ostendimus (vide propositionem 16 hujus) quatenus externum ipsum humanum corpus certo quodam modo determinat. At quatenus externum corpus individuum est quod ad corpus humanum non refertur, ejus idea sive cognitio in Deo est (per propositionem 9 hujus) quatenus Deus affectus consideratur alterius rei idea quæ (per propositionem 7 hujus) ipso corpore externo prior est natura. Quare corporis externi adæquata cognitio in Deo non est quatenus ideam affectionis humani corporis habet sive idea affectionis corporis humani adæquatam corporis externi cognitionem non involvit. Q.E.D.
English (Elwes 1883)
We have shown that the idea of a modification of the human body involves the nature of an external body, in so far as that external body conditions the human body in a given manner. But, in so far as the external body is an individual, which has no reference to the human body, the knowledge or idea thereof is in God (II. ix.), in so far as God is regarded as affected by the idea of a further thing, which (II. vii.) is naturally prior to the said external body. Wherefore an adequate knowledge of the external body is not in God, in so far as he has the idea of the modification of the human body; in other words, the idea of the modification of the human body does not involve an adequate knowledge of the external body. Q.E.D.
Modern English
We have shown that the idea of an affection of the human body involves the nature of an external body insofar as that external body determines the human body in a certain way (E2P16). But insofar as the external body is an individual that has no reference to the human body, its idea or knowledge is in God (E2P9) insofar as God is regarded as affected by another idea of a thing that is prior in the order of nature to the external body itself (E2P7). Accordingly, an adequate knowledge of the external body is not in God insofar as God has the idea of an affection of the human body, or, the idea of an affection of the human body does not involve an adequate knowledge of the external body. Q.E.D.