In Victor Hugo's "Les Misérables," the author emphasizes that the greater threats to humanity are not external forces like thieves and murderers but rather the internal struggles individuals face. He suggests that we should focus less on external dangers and more on the moral and ethical dilemmas that reside within us. Prejudices and vices are depicted as significant threats, eroding the essence of our character.

Hugo's message calls for introspection, urging readers to consider the impact of their own flaws and biases. The true peril comes from within, as these internal struggles can endanger our moral integrity and soul. In a way, he advocates for personal responsibility and the importance of nurturing one's inner self over being overly concerned with outside threats.