In his book "The Passage of Power," Robert A. Caro discusses the dual nature of power, highlighting that while it can corrupt individuals, it also serves to reveal their true character. The process of seeking power often requires individuals to mask their behaviors and intentions. This concealment is essential during the initial stages of ambition when a person must persuade others to support their rise.

However, as one gains more power, the need for disguise diminishes. The accumulated authority allows for a more authentic expression of one’s personality, leading to a clearer understanding of who they are. This interplay between concealment during aspiration and revelation through power illustrates the complexities of human behavior in political and social contexts.