Mill argues that the principle of utility has historically shaped moral doctrines even among those who reject it, as the effects of actions on happiness are an undeniable consideration in all ethical systems.

Mill views the history of social progress as the gradual recognition of former 'necessities' as injustices, concluding that justice represents the highest order of social utility despite being occasionally overruled by other urgent duties.

The author contends that utilitarianism provides a tangible and intelligible framework for deciding moral disputes and enforcing the moral law through social opinion.

Mill argues that while moral associations can be artificially created through education, utilitarianism is uniquely stable because it is grounded in a natural basis of human sentiment rather than being a mere intellectual construct.

Mill explores the internal sanction of conscience, noting that transcendentalists fear morality will lose its power if individuals view their sense of obligation as merely a subjective feeling within the mind.