For the majority of Great Expectations, Pip exhibits belief in a sharp line between evil and good, and tends to label people and situations as being one extreme or the other; for example, despite their respective complexities, he esteems Estella as good and the convict as evil. Both morally and socially, thus, Pip himself is often wedged between extremes, where his own situation rarely matches up to his moral vision. Explain what is the role of moral extremes in this novel? Explain what does it mean to be ambiguous or caught between extremes? Explain how this affects his "great expectations?"