The Metaphysical Elements of Ethics

The Metaphysics of Morals is a 1797 work of political and moral philosophy by Immanuel Kant. In structure terms, it is divided into two sections: the Doctrine of Right, dealing with rights, and the Doctrine of Virtue, dealing with virtues.
Immanuel Kant was an influential German philosopher in the Age of Enlightenment. In his doctrine of transcendental idealism, he argued that space, time, and causation are mere sensibilities; “things-in-themselves” exist, but their nature is unknowable.