E5P23D
Demonstration — Part V
Latin
In Deo datur necessario conceptus seu idea quæ corporis humani essentiam exprimit (per propositionem præcedentem) quæ propterea aliquid necessario est quod ad essentiam mentis humanæ pertinet (per propositionem 13 partis II). Sed menti humanæ nullam durationem quæ tempore definiri potest, tribuimus nisi quatenus corporis actualem existentiam quæ per durationem explicatur et tempore definiri potest, exprimit hoc est (per corollarium propositionis 8 partis II) ipsi durationem non tribuimus nisi durante corpore. Cum tamen aliquid nihilominus sit id quod æterna quadam necessitate per ipsam Dei essentiam concipitur (per propositionem præcedentem) erit necessario hoc aliquid quod ad mentis essentiam pertinet, æternum. Q.E.D.
English (Elwes 1883)
There is necessarily in God a concept or idea, which expresses the essence of the human body (last Prop.), which, therefore, is necessarily something appertaining to the essence of the human mind (II. xiii.). But we have not assigned to the human mind any duration, definable by time, except in so far as it expresses the actual existence of the body, which is explained through duration, and may be defined by time--that is (II. viii. Coroll.), we do not assign to it duration, except while the body endures. Yet, as there is something, notwithstanding, which is conceived by a certain eternal necessity through the very essence of God (last Prop.); this something, which appertains to the essence of the mind, will necessarily be eternal. Q.E.D.
Modern English
There is necessarily in God a concept or idea that expresses the essence of the human body (E5P22), and this is therefore necessarily something that belongs to the essence of the human mind (E2P13). But we attribute no duration to the human mind that can be defined by time except insofar as it expresses the body's actual existence, which is explained through duration and can be defined by time, that is, (E2P8C), we attribute no duration to it except while the body endures. Yet there is nevertheless something that is conceived by a certain eternal necessity through God's own essence (E5P22). This something that belongs to the essence of the mind will therefore necessarily be eternal. Q.E.D.