3p3d.md (734B)
1 The first element, which constitutes the essence of 2 the mind, is nothing else but the idea of the actually existent 3 body (II. xi. and xiii.), which (II. xv.) is compounded of many 4 other ideas, whereof some are adequate and some inadequate (II. 5 xxix. Coroll., II. xxxviii. Coroll.). Whatsoever therefore 6 follows from the nature of mind, and has mind for its proximate 7 cause, through which it must be understood, must necessarily 8 follow either from an adequate or from an inadequate idea. But 9 in so far as the mind (III. i.) has inadequate ideas, it is 10 necessarily passive: wherefore the activities of the mind follow 11 solely from adequate ideas, and accordingly the mind is only 12 passive in so far as it has inadequate ideas. Q.E.D. 13 14