Formal Discipline

Formal discipline, also called mental discipline or the doctrine of formal training, is an educational theory holding that the mind is composed of separate faculties, such as memory, reasoning and will, that function like muscles and can be strengthened generally through rigorous exercise on demanding material, regardless of that material's own content. On this view, subjects such as Latin and geometry were valued less for their direct usefulness than for the disciplined mental exertion involved in mastering them, exertion believed to transfer and improve a student's thinking in other, unrelated areas. The theory grew out of faculty psychology, an older framework treating the mind as divided into distinct powers, and shaped curriculum debates in schools and universities for much of the nineteenth century. Formal discipline lost most of its scientific standing after early twentieth-century experimental psychologists, including Edward Thorndike, found little evidence that rigorous training in one subject reliably transferred to unrelated mental tasks, and contemporary psychology has largely replaced faculty-based accounts of the mind with frameworks grounded in neuroscience and cognitive research, though some scholars still see philosophical value in aspects of the older theory when paired with current experimental evidence.