I was a fool to fancy for a moment that she valued Edgar Linton's attachment more than mine; if he loved with all the powers of his puny being, he couldn't love as much in eighty years as I could in a day. And Catherine has a heart as deep as I have; the sea could be as readily contained in that house-trough as her whole affection be monopolized by him. Tush! He is scarcely a degree dearer to her than her dog, or her horse. It is not in him to be loved like me; how can she love in him what he has not?

Heathcliff (Ch. XIV). - Wuthering Heights (1847)