12 ideas
22752 | Reasoning is impossible without a preconception [Sext.Empiricus] |
9406 | A class is natural when everybody can spot further members of it [Quinton] |
9390 | Logic guides thinking, but it isn't a substitute for it [Rumfitt] |
15730 | Extreme nominalists say all classification is arbitrary convention [Quinton] |
15728 | The naturalness of a class depends as much on the observers as on the objects [Quinton] |
9407 | Properties imply natural classes which can be picked out by everybody [Quinton] |
15729 | Uninstantiated properties must be defined using the instantiated ones [Quinton] |
8520 | An individual is a union of a group of qualities and a position [Quinton, by Campbell,K] |
9389 | Vague membership of sets is possible if the set is defined by its concept, not its members [Rumfitt] |
22754 | Saying the good is useful or choiceworth or happiness-creating is not the good, but a feature of it [Sext.Empiricus] |
22755 | Like a warming fire, what is good by nature should be good for everyone [Sext.Empiricus] |
22756 | If a desire is itself desirable, then we shouldn't desire it, as achieving it destroys it [Sext.Empiricus] |