The transition from horticultural to agricultural societies is characterized by the development of intensive farming techniques. This shift allowed for the production of a significant food surplus, which supported larger populations, specialized labor, and the creation of complex social hierarchies, eventually necessitating bureaucratic systems to manage resources and governance.

Terrorist organizations often rely on clandestine, small-cell operations to achieve specific political or ideological goals through fear. In contrast, liberation movements typically seek to mobilize large segments of the population to gain legitimacy and achieve broad social or political change. This distinction highlights the difference between the exclusionary tactics of terrorism and the inclusive, mass-based approach of liberation movements.

The rule of law implies that all individuals, including those in power, are subject to established, predictable legal standards. Conversely, the 'rule of men' refers to a system where decisions are made based on the arbitrary will, personal preferences, or whims of those in authority. This lack of consistent legal constraints undermines equality and justice, making it the fundamental opposite of a system governed by objective, transparent, and universally applicable laws.

Social Darwinism applied the biological concept of 'survival of the fittest' to human society. Proponents believed that social progress was driven by competition and that those who were most capable or 'fit' should naturally rise to positions of power and control resources. This ideology was often used to justify laissez-faire capitalism and to argue against social welfare programs, claiming they interfered with natural selection.

Social ranking is a complex process influenced by various ascribed and achieved statuses. Age and sex are common ascribed characteristics that influence social roles and hierarchies in many cultures. Wealth is a primary achieved status that significantly impacts an individual's position in the social hierarchy. Therefore, all these factors contribute to the multidimensional nature of how individuals are ranked within a stratified society.

Collective behavior is characterized by its spontaneous and unorganized nature, often emerging in response to ambiguous or stressful situations. Unlike institutionalized behavior, which follows formal rules and clear hierarchies, collective behavior lacks a rigid structure or long-term planning. This lack of formal organization is what distinguishes it from other forms of social interaction, making it highly dynamic and often unpredictable in its development and outcomes.

The elitist school of thought suggests that the elite, although often perceived as being opposed to the masses, may not always have a conflicting interest. This perspective challenges the conventional notion of an inherent power struggle between the elite and the masses, suggesting that elite actions can sometimes align with broader societal needs or stability.

Karl Marx argued that the fundamental structure of society is determined by the economic base, specifically the ownership of the means of production. He posited that private ownership creates a conflict between the bourgeoisie (owners) and the proletariat (workers), which inherently perpetuates class divisions and systemic inequality. This conflict is the primary driver of historical change in his materialist conception of history.

C. Wright Mills argued that the power elite consists of individuals in prominent positions within the military, corporate, and political sectors. He posited that this group exerts disproportionate influence over critical national decisions, specifically those concerning war, peace, and major economic policy, rather than controlling every minor social or political detail. This theory highlights the concentration of power in modern industrial societies and the limited influence of the general public on high-level strategic decisions.

Polyandry is a rare form of polygamy where a woman has more than one husband at the same time. This is distinct from polygyny, where a man has multiple wives. These practices are specific cultural arrangements found in certain societies, contrasting with the more common practice of monogamy found in most modern legal systems.