4 ideas
19456 | Philosophy is distinguished from other sciences by its complete lack of presuppositions [Feuerbach] |
9390 | Logic guides thinking, but it isn't a substitute for it [Rumfitt] |
9389 | Vague membership of sets is possible if the set is defined by its concept, not its members [Rumfitt] |
16707 | Cold and hot are the swiftness and slowness of corpuscular motion [Beeckman] |