CC Madhya 24.243

ardha-mārā jīva yadi dhaḍ-phaḍa kare
tabe ta’ ānanda mora bāḍaye antare”
Synonyms: 
ardha-mārā jīva — half-killed living beings; yadi — if; dhaḍ-phaḍa kare — twist and turn because of suffering; tabe — then; ta’ — certainly; ānanda — pleasure; mora — my; bāḍaye antare — increases within.
Translation: 
“ ‘When I see half-killed animals suffer, I feel great pleasure.’