3p35d.md (960B)
1 In proportion as a man thinks, that a loved object is 2 well affected towards him, will be the strength of his 3 self–approval (by the last Prop.), that is (III. xxx. note), of 4 his pleasure; he will, therefore (III. xxviii.), endeavour, as 5 far as he can, to imagine the loved object as most closely bound 6 to him: this endeavour or desire will be increased, if he thinks 7 that someone else has a similar desire (III. xxxi.). But this 8 endeavour or desire is assumed to be checked by the image of the 9 loved object in conjunction with the image of him whom the loved 10 object has joined to itself; therefore (III. xi. note) he will 11 for that reason be affected with pain, accompanied by the idea of 12 the loved object as a cause in conjunction with the image of his 13 rival; that is, he will be (III. xiii.) affected with hatred 14 towards the loved object and also towards his rival (III. xv. 15 Coroll.), which latter he will envy as enjoying the beloved 16 object. Q.E.D. 17 18