2p24d.md (1329B)
1 The parts composing the human body do not belong to 2 the essence of that body, except in so far as they communicate 3 their motions to one another in a certain fixed relation (Def. 4 after Lemma iii.), not in so far as they can be regarded as 5 individuals without relation to the human body. The parts of the 6 human body are highly complex individuals (Post. i.), whose 7 parts (Lemma iv.) can be separated from the human body without in 8 any way destroying the nature and distinctive quality of the 9 latter, and they can communicate their motions (Ax. i., after 10 Lemma iii.) to other bodies in another relation; therefore (II. 11 iii.) the idea or knowledge of each part will be in God, 12 inasmuch (II. ix.) as he is regarded as affected by another idea 13 of a particular thing, which particular thing is prior in the 14 order of nature to the aforesaid part (II. vii.). We may affirm 15 the same thing of each part of each individual composing the 16 human body; therefore, the knowledge of each part composing the 17 human body is in God, in so far as he is affected by very many 18 ideas of things, and not in so far as he has the idea of the 19 human body only, in other words, the idea which constitutes the 20 nature of the human mind (II. xiii); therefore (II. xi. 21 Coroll.), the human mind does not involve an adequate knowledge 22 of the human body. Q.E.D. 23 24