Marlow's quote introduces the theme of darkness and the exploration of human nature.
Marlow's statement, 'And this also,' said Marlow suddenly, 'has been one of the dark places of the earth', signifies the theme of darkness and mystery in the novel. This quote introduces the idea of exploring the unknown and confronting the darker aspects of human nature.
Within the context of the text, Marlow's sudden revelation about the dark places on earth sets the tone for the journey into the complexities of human existence and the exploration of moral ambiguity.
Through Marlow's statement, Joseph Conrad foreshadows the challenges and revelations that Marlow will encounter in his exploration of the human psyche and the depths of darkness within individuals and societies.
https://brainly.com/question/9737432