display all the ideas for this combination of texts
4 ideas
14463 | Existence can only be asserted of something described, not of something named [Russell] |
Full Idea: Existence can only be asserted of something described, not of something named. | |
From: Bertrand Russell (Introduction to Mathematical Philosophy [1919], XVIII) | |
A reaction: This is the motivation behind Russell's theory of definite descriptions, and epitomises the approach to ontology through language. Sounds wrong to me! |
6717 | Abstract ideas are impossible [Berkeley] |
Full Idea: We have, I think, shown the impossibility of Abstract Ideas. | |
From: George Berkeley (The Principles of Human Knowledge [1710], Intro §21) | |
A reaction: He achieves this by an attack on universals, offering the nominalist view that there are only particulars. There seems to be a middle ground, where universals don't actually exist, but there are settled conventional abstraction, beyond particulars. |
18876 | Berkeley does believe in trees, but is confused about what trees are [Berkeley, by Cameron] |
Full Idea: I think that we should consider Berkeley as believing in trees; we should simply claim that he has false beliefs about what trees are. | |
From: report of George Berkeley (The Principles of Human Knowledge [1710]) by Ross P. Cameron - Truthmakers, Realism and Ontology 'Realism' | |
A reaction: I can be realist about spots before my eyes, or a ringing in my ears, but be (quite sensibly) unsure about what they are, so Cameron's suggestion sounds plausible. |
14429 | Classes are logical fictions, made from defining characteristics [Russell] |
Full Idea: Classes may be regarded as logical fictions, manufactured out of defining characteristics. | |
From: Bertrand Russell (Introduction to Mathematical Philosophy [1919], II n1) | |
A reaction: I agree with this. The idea that in addition to the members there is a further object, the set containing them, is absurd. Sets are a tool for thinking about the world. |