Some Classics in Metaphysics
Aristotle. “Metaphysics (Metaphysica)” in Classics of Philosophy, Vol 1. Louis P. Pojman, Oxford: Oxford University Press, 1998. pp. 267-288.
Leibniz, Gottfried Wilhelm. “Discourse of Metaphysics” in Classics of Philosophy, Vol 2. Louis P. Pojman, Oxford: Oxford University Press, 1998. pp. 581-602.
Kant, Immanuel. “Prolegomena to Any Future Metaphysics,” in Classics of Philosophy, Vol 2. Louis P. Pojman, Oxford: Oxford University Press, 1998. pp. 774-820.
_________. “Foundation for Metaphysic of Morals,” in Classics of Philosophy, Vol 2. Louis P. Pojman, Oxford: Oxford University Press, 1998. pp. 820-856.
Plato. Parmenides (many versions).