E5P3D
Demonstration — Part V
Latin
Affectus qui passio est, idea est confusa (per generalem affectuum definitionem). Si itaque ipsius affectus claram et distinctam formemus ideam, hæc idea ab ipso affectu quatenus ad solam mentem refertur, non nisi ratione distinguetur (per propositionem 21 partis II cum ejusdem scholio) adeoque (per propositionem 3 partis III) affectus desinet esse passio. Q.E.D.
English (Elwes 1883)
An emotion, which is a passion, is a confused idea (by the general Def. of the Emotions). If, therefore, we form a clear and distinct idea of a given emotion, that idea will only be distinguished from the emotion, in so far as it is referred to the mind only, by reason (II. xxi., and note); therefore (III. iii.), the emotion will cease to be a passion. Q.E.D.
Modern English
An affect that is a passion is a confused idea (E3DA49). If we therefore form a clear and distinct idea of that affect, this new idea will differ from the affect itself, insofar as the affect is referred to the mind alone, only in reasoning (E2P21S). The affect will therefore cease to be a passion (E3P3). Q.E.D.