The historical figure known for the principle of **utilitarianism** in governance is **John Stuart Mill**. Mill argued that the best actions or policies are those that maximize happiness and minimize suffering for the greatest number of people. His philosophy promotes **pragmatism** in decision-making, suggesting that government practices should be evaluated based on their outcomes and benefits to society. This approach has significantly influenced modern political thought, shaping discussions around **public policy**, social welfare, and law, advocating that moral actions ought to consider collective well-being.