3 ideas
| 20110 | Hegel, Fichte and Schelling wanted to know Kant's thing-in-itself, as ego, or nature, or spirit [Safranski] |
| Full Idea: The 'thing in iself' acted on Kant's successors like a hole in the closed world of knowledge...Hegel, Fichte and Schelling wanted to penetrate into what they presumed to be the heart of things, by the invention of means of 'ego', or 'nature', or 'spirit., | |
| From: Rüdiger Safranski (Nietzsche: a philosophical biography [2000], 07) | |
| A reaction: [a bit compressed] Although no scientist claims to know the ultimate essence of matter, the authority of science largely comes from persuasively moving us several steps closer to the thing in itself (more persuasively than these three). |
| 15381 | Dyamic logics model changes between classical states, in action, belief, and computing [Uckelman] |
| Full Idea: Dynamic logic gives versions of propositional, modal and predicate logics, in which the states are classical, but changes of assignments between states can be expressed, by modelling action, knowledge and belief change, and compute programs. | |
| From: Sara L. Uckelman (Dynamic Logics [2010]) | |
| A reaction: [compressed] |
| 12750 | The question is whether force is self-sufficient in bodies, and essential, or dependent on something [Lenfant] |
| Full Idea: The whole question is to know if the force to act in bodies is in matter something distinct and independent of everything else that one conceives there. Without that, this force cannot be its essence, and will remain the result of some primitive quality. | |
| From: Jacques Lenfant (Letters to Leibniz [1693], 1693.11.07), quoted by Daniel Garber - Leibniz:Body,Substance,Monad 8 | |
| A reaction: This challenge to Leibniz highlights the drama of trying to simultaneously arrive at explanations of things, and to decide the nature of essence. Leibniz replied that force is primitive, because it is the 'principle' of behaviour and dispositions. |