Fundamental Principles of the Metaphysic of Morals

In Fundamental Principles of the Metaphysic of Morals, Immanuel Kant lays the groundwork for his moral philosophy, positing that true morality springs not from external laws but from a universal law within each individual. Kant introduces the categorical imperative, a principle demanding actions be universally applicable, guiding ethical behavior beyond personal gain. This text challenges readers to examine the motives behind their actions, advocating for a life led by duty and rational moral principles.