Immanuel Kant
Kant developed his moral philosophy in three works: "Groundwork of the Metaphysic of Morals" (1785), "Critique of Practical Reason" (1788), and "Metaphysics of Morals" (1797).
Meister Eckhart
When Franz Pfeiffer published his edition of Eckhart's works in 1857, he included seventeen vernacular treatises he considered to be written by Eckhart. Modern scholarship is much more cautious, however, and the critical edition accepts only four of Eckhart's vernacular treatises as genuine: