display all the ideas for this combination of philosophers
7 ideas
16897 | Reason is the faculty for grasping apriori necessary truths [Leibniz, by Burge] |
Full Idea: Leibniz actually characterises reason as the faculty for apprehending priori, necessary truths. | |
From: report of Gottfried Leibniz (works [1690]) by Tyler Burge - Frege on Apriority (with ps) 2 | |
A reaction: No wonder it is called the Age of Reason when the claims are this grandiose. |
13009 | A reason is a known truth which leads to assent to some further truth [Leibniz] |
Full Idea: A reason is a known truth whose connection with some less well-known truth leads us to give our assent to the latter. | |
From: Gottfried Leibniz (New Essays on Human Understanding [1704], 4.17) | |
A reaction: This is plainly false, because you can have a reason for believing something, but still not give your assent to it, presumably because of counter-reasons. And a false belief could also be a reason, even to believe a truth. Tut tut. |
19335 | Reasonings have a natural ordering in God's understanding, but only a temporal order in ours [Leibniz] |
Full Idea: All reasonings are eminent in God, and they preserve an order among themselves in his understanding as well as in ours; but for him this is just an order and a priority of nature, whereas for us there is a priority of time. | |
From: Gottfried Leibniz (The Theodicy [1710], p.192), quoted by Franklin Perkins - Leibniz: Guide for the Perplexed 2.III | |
A reaction: This view is found in Frege, and seems to be the hallmark of rationalist philosophy. There is an apriori assumption that reality has a rational order, so that pure reason is a tool for grasping it. Lewis's 'mosaic' of experiences has no order. |
5035 | The two basics of reasoning are contradiction and sufficient reason [Leibniz] |
Full Idea: The two first principles of reasoning are: the principle of contradiction, and the principle of the need for giving a reason. | |
From: Gottfried Leibniz (A Specimen of Discoveries [1686], p.75) | |
A reaction: Could animals have any reasoning ability (say, in solving a physical problem)? Leibniz's criteria both require language. Note the overlapping of the principle of sufficient reason (there IS a reason) with the contractual idea of GIVING reasons. |
3346 | For Leibniz rationality is based on non-contradiction and the principle of sufficient reason [Leibniz, by Benardete,JA] |
Full Idea: Leibniz distinguished two fundamental principles of rationality - the principle of non-contradiction and the principle of sufficient reason. | |
From: report of Gottfried Leibniz (works [1690]) by José A. Benardete - Metaphysics: the logical approach Ch.18 |
12963 | Opposing reason is opposing truth, since reason is a chain of truths [Leibniz] |
Full Idea: To speak against reason is to speak against truth, for reason is a chain of truths. | |
From: Gottfried Leibniz (New Essays on Human Understanding [1704], 2.21) | |
A reaction: Truth has a talismanic quality here (which it didn't always have). This is a lovely slogan for defenders of the Enlightenment. It forces modern critics of the Enlightenment (Adorno etc) to launch an attack on truth, which is a doomed line. |
19433 | The universe is infinitely varied, so the Buridan's Ass dilemma could never happen [Leibniz] |
Full Idea: The Buridan's Ass case of perfect equilibrium is chimerical. ...The universe has no centre and its parts are infinitely varied; thus it will never happen that all will be perfectly equal and will strike equally from one side or the other. | |
From: Gottfried Leibniz (Letters to Coste [1707], 1707) | |
A reaction: Can the great Leibniz have missed the point? Surely all that matters is that the ass cannot distinguish the two options - not that they actually are identical in every detail? If the ass is short-sighted, that should be easy to set up. |