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2 ideas
221 | Absolute ideas, such as the Good and the Beautiful, cannot be known by us [Plato] |
Full Idea: The absolute good and the beautiful and all which we conceive to be absolute ideas are unknown to us. | |
From: Plato (Parmenides [c.364 BCE], 134c) |
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. |