In certain cases, the term "location" is used to define the context in which writing and other language-related concerns are held and addressed. In the literary world, place is frequently paired with time and events to form what is known as a literary work's social setting or social context. For example, Shakespeare's Romeo and Juliet is a love story that takes place in a single day and night. It can therefore be considered a single-scene play. The word "place" has many different definitions depending on the field of study. In geography, geography is defined as the study of places and their relationships. Geographers are therefore interested in where things are located (i.e., geographical locations) as well as how things are connected (i.e., pathways). In philosophy, the concept of place was introduced by Aristotle in his book Poetics. In this work, Aristotle discusses how poets use location as a tool for emotional effect. Place is important because emotions are felt most strongly at a physical location near one or more experiences we call memories. Thus, location is used by poets to move readers emotionally. Literature courses often include discussions of real people who lived in different times and places. These characters interact with each other and with other elements within the narrative, such as objects and settings. The ways in which they interact reveal much about themselves as well as their culture. Literature courses also often include discussions of fictional characters who live in different times and places.