The effects of the love potion are permanent, and extend far beyond the mere casual impulse. For indifference, they substitute devotion. For scorn, adoration.She will never allow you to be tired, to sit in a draught, to neglect your food.
其中,For indifference, they substitute devotion. For scorn, adoration一句,因为句式一样,后面省略了主谓,应该为For indifference, they substitute devotion. For scorn, (they substitute)adoration。