Interests Definition
In everyday language, the term interests encompasses several interrelated meanings: it can denote a state of attracting attention or curiosity; it may be used as a synonym for property or investments; and more broadly, it refers to whatever contributes to an individual’s general well-being or the fulfilment of their purposes. These usages have proven highly influential in philosophy and the social sciences.
Philosophical Origins
The concept of self-interest is rooted in materialist views of human nature, such as those proposed by Thomas Hobbes, who argued that self-preservation is the fundamental motivation for all human action. This focus on self-interest was central to early political economy. However, this view faced challenges from thinkers like David Hume and Adam Ferguson, who contended that humans are inherently social beings, meaning a clear separation between individual self-interest and the interests of others is impossible. Critics argued that virtues such as courage and loyalty are more fundamental attributes of the self than material possessions.
Sociological Development
Despite philosophical debates, the traditional materialist approach persisted in social and political science, often linking interests primarily to material wealth or political power, thereby separating them from normative values. A significant shift occurred in the nineteenth century, particularly with the historical materialism of Marx and Engels, which involved attributing interests not just to individuals but to hypothetical collective actors, such as social classes and factions. This practice has since been generalised across disciplines like industrial sociology and political sociology to analyse how groups with shared economic or social advantages seek to protect or overcome disadvantages.
Epistemological Challenges
The utility of the concept of interests lies in its potential to connect an analysis of objective life conditions with patterns of individual and group belief and action. However, a core methodological dispute remains regarding whether interests can be objectively attributed to individuals or groups without prior knowledge of their internal beliefs and intentions. Many sociologists contend that an individual’s sense of social identity must precede the conception of self-interest; consequently, interests are best defined subjectively rather than objectively.

