While the surrounding environment shapes a person, basic human nature sets the limits. Human nature, although complicated, includes aspects that help build and guide it. One's nature serves as a force that aids daily decisions. It plays a much bigger role in a person's life than people realize. Human nature guides the course of one's actions and thoughts. Murder on the Orient Express and Agatha Christie's Murder in the Vicarage both demonstrate that, normally, in societies people obey social and moral laws; however, if following these rules does not allow a person to satisfy their needs, human nature transforms and allows justice, greed, fear and, in some cases, innate evil to lead to criminal actions. ExpandHuman nature is made up of a set of natural and recognizable characteristics; including ways of thinking, feeling and acting. All of these are a “product of both our innate nature and our individual experience and environment” (Miller 1). When human nature is influenced by certain emotions, the need to act on those emotions may arise. Most people avoid acting on these emotions with guidance or self-control, but some resort to criminal actions. Crime occurs because “human nature is full of inconsistencies” but not all people have the nature to commit crime (Christie, “Vicarage” 227). Almost every person possesses some instinctive qualities, but due to inconsistencies there are characteristics that remain unique to some people. The motivation or emotions that often lead to the action of these unique characteristics “relate to core internal desires for control, dominance, anger, revenge, and display of personally perceived inadequacy” (Gonzalez 1). All crimes involve some sense of justice. If the right...... middle of the paper ......and, Vicarage 232). MORE MORE MORE AND SECONDARY SOURCE Just as characteristics of human nature drive and motivate crime, they also lay the foundation for crime planning. When someone plans a crime they take many things into consideration so that the crime does not fail and therefore remains discreet. Criminals “decide their course of action” in favor of their chances of escaping punishment (Gonzalez 1). Criminals allow “self-motivated thinking to shine through” (Gonzalez 1). “Desire, opportunity, ability and gain come together to formulate the strategy” of the crime. Every day people go through numerous mental processes to make simple decisions and actions. Criminals use the same strategy but think about things with much more detail and importance because the action they commit must be perfect for it to remain a successful secret. In Murder on the Orient Express,