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A work which debates the effects of nature and nurture.
What is ...
DAHR--effect of characters' upbringing (Jenny, for instance, abuses her daughter just as Pearl had abused her), but also the existence of different personality types (Jenny, Ezra, Cody all raised by the same parent(s) but turn out very different).
Wuthering Heights--again, upbringing has a powerful effect (reinforces Heathcliff's bitterness, changes Hareton for the worse), but in the end, nature appears to win out. Hareton, for example, re-emerges as the kind, compassionate person whom Nelly remembers as a child.