Frustrated by the "left-right" line analysis that leaves no room for other ideologies, Nolan devised a chart with two axes which would come to be known as the Nolan Chart, and later became the centerpiece of the World's Smallest Political Quiz. Nolan's argument was that the major difference between various political philosophies, the real defining element in what a person believes politically, is the amount of government control over human action that is advocated. Nolan further reasoned that virtually all human political action can be divided into two broad categories: economic and personal. The "economic" category includes what people do as producers and consumers – what they can buy, sell and produce, where they work, who they hire and what they do with their money. Examples of economic activity include starting or operating a business, buying a home, constructing a building and working in an office. The "personal" category includes what people do in relationships, in self-expression and what they do with their own bodies and minds. Examples of personal activities include whom they marry; choosing what books they read and movies they watch; what foods, medicines and drugs they choose to consume; recreational activities; religious choices; organizations they join; and with whom they choose to associate.