What is the main idea in the book Divergent?

The main idea of "Divergent" by Veronica Roth revolves around a dystopian society divided into factions based on human virtues, such as bravery and intelligence. The protagonist, Tris Prior, struggles to find her identity in a world that demands conformity, ultimately discovering that she is "Divergent," possessing traits from multiple factions. This uniqueness puts her in danger as she navigates a conflict that challenges the rigid societal structure. The story explores themes of identity, choice, and the consequences of a divided society.