| 12119 | Physics studies transitory matter; metaphysics what is abstracted and necessary [Bacon] |
| 12120 | Physics is of material and efficient causes, metaphysics of formal and final causes [Bacon] |
| 12914 | Metaphysics is geometrical, resting on non-contradiction and sufficient reason [Leibniz] |
| 12780 | We can grasp the wisdom of God a priori [Leibniz] |
| 9752 | Kant showed that theoretical reason cannot give answers to speculative metaphysics [Kant, by Korsgaard] |
| 6584 | A priori metaphysics is fond of basic unchanging entities like God, the soul, Forms, atoms… [Kant, by Fogelin] |
| 9349 | A dove cutting through the air, might think it could fly better in airless space (which Plato attempted) [Kant] |
| 3722 | Metaphysics goes beyond the empirical, so doesn't need examples [Kant] |
| 6203 | Metaphysics is just a priori universal principles of physics [Kant] |
| 21474 | Metaphysics studies the inexplicable ends of explanation [Schopenhauer] |
| 19229 | Metaphysics is the science of both experience, and its general laws and types [Peirce] |
| 5182 | Claims about 'the Absolute' are not even verifiable in principle [Ayer on Bradley] |
| 19199 | Some say metaphysics is a highly generalised empirical study of objects [Tarski] |
| 18390 | All metaphysical discussion should be guided by a quest for truthmakers [Armstrong] |
| 2546 | Philosophy is a magnificent failure in its attempt to overstep the limits of our knowledge [McGinn] |
| 17275 | Realist metaphysics concerns what is real; naive metaphysics concerns natures of things [Fine,K] |
| 8282 | Only metaphysics can decide whether identity survives through change [Lowe] |
| 16127 | Metaphysics tells us what there could be, rather than what there is [Lowe] |
| 16415 | Esoteric metaphysics aims to be top science, investigating ultimate reality [Hofweber] |
| 22611 | Metaphysics can criticise interpretations of science theories, and give good feedback [Ingthorsson] |