3p20d.md (547B)
1 The mind (III. xiii.) endeavours to conceive those 2 things, which exclude the existence of things whereby the body's 3 power of activity is diminished or constrained; that is (III. 4 xiii. note), it endeavours to conceive such things as exclude the 5 existence of what it hates; therefore the image of a thing, 6 which excludes the existence of what the mind hates, helps the 7 aforesaid mental effort, in other words (III. xi. note), affects 8 the mind pleasurably. Thus he who conceives that the object of 9 his hate is destroyed will feel pleasure. Q.E.D. 10 11