"Your presence is a moral poison that would contaminate the most virtuous" is a powerful quote from Emily Brontë's novel Wuthering Heights. It suggests that someone's presence can have a corrupting or damaging influence on even the purest of individuals.
This quote highlights themes of morality, influence, and the destructive power of certain personalities. It reflects the idea that some individuals can morally taint others simply by being near them, emphasizing the negative impact of certain relationships and personalities within the story's dark and intense setting.