We should distrust ourselves most when we are certain; question ourselves when a rush of adrenaline

The early themes of the books suggest that jumping to conclusions based on prejudices can lead to inaccurate judgments. Although there is a presence of good and evil, it is not always easy to discern between the two. The character of Voldemort in the books deliberately dehumanizes himself and sees humane behavior as weakness. The books explore the appeal of black and white thinking, which provides a sense of safety and belonging. However, the author emphasizes that we should question ourselves when we are certain and when we experience a rush of adrenaline, as this may not be the voice of conscience. Conscience speaks in a small and inconvenient voice, urging us to think again and consider more deeply. The characters of Dumbledore and Snape in the books cause intense debate among fans because they are not categorically good or evil. Dumbledore is flawed but exemplifies goodness, while Snape, despite being a bully, shows courage and determination to make amends for his wrongdoings.