Since Watt's work, numerous theorists and historians have attempted to answer the limitations of his assumptions.

Other theorists attempt to demarcate between degrees of personhood.

The second section, "Applications", considers how various other theorists have attempted to develop Austin's theory.

Functional theorists attempt to understand the divergent attitudes individuals have towards people, objects or issues in different situations.

Over the last few decades, several theorists have attempted to explain social norms from a more theoretical point of view.

While flexibility is encouraged when implementing an adversary evaluation, some theorists have attempted to identify the stages of specific adversary models.

Many theorists have attempted to solve the paradox by way of n-valued logics, such as fuzzy logic, which have radically departed from classical two-valued logics.

Biological, psychoanalytic, ethological, ecological, social learning, and cognitive theorists have all attempted to further our understanding of aggression.

Some theorists have attempted to counter these objections by reference to the 'social contract', a theory which provides a general account of political obligation (see especially Murphy, 1979).

Many theorists attempt to analyze the process of romantic love.