7 ideas
16209 | How can point-duration slices of people have beliefs or desires? [Thomson] |
Full Idea: Can one really think that point-duration temporal slices of bodies believe things or want things? | |
From: Judith (Jarvis) Thomson (People and Their Bodies [1997], p.211), quoted by Katherine Hawley - How Things Persist 2.9 n21 | |
A reaction: There is a problem with a slice doing anything long-term. The bottom line is that things are said to 'endure', but that is precisely what time-slices are unable to do. Hawley rejects this idea. |
13195 | To explain a house we must describe its use, as well as its parts [Leibniz] |
Full Idea: A house would be badly explained if we were to describe only the arrangement of its parts, but not its use. | |
From: Gottfried Leibniz (On Body and Force, Against the Cartesians [1702], p.255) | |
A reaction: This must partly fall under pragmatics (i.e. what the enquirer is interested in). But function plays a genuine role in artefacts, and also in evolved biological organs. |
13193 | Active force is not just potential for action, since it involves a real effort or striving [Leibniz] |
Full Idea: Active force should not be thought of as the simple and common potential [potentia] or receptivity to action of the schools. Rather, active force involves an effort [conatus] or striving [tendentia] toward action. | |
From: Gottfried Leibniz (On Body and Force, Against the Cartesians [1702], p.252) | |
A reaction: This is why Leibniz is lured into making his active forces more and more animistic, till they end up like proto-minds (though never, remember, conscious and willing minds). |
1590 | The just man does not harm his enemies, but benefits everyone [Plato] |
Full Idea: First, Socrates, you told me justice is harming your enemies and helping your friends. But later it seemed that the just man, since everything he does is for someone's benefit, never harms anyone. | |
From: Plato (Clitophon [c.372 BCE], 410b) | |
A reaction: Socrates certainly didn't subscribe to the first view, which is the traditional consensus in Greek culture. In general Socrates agreed with the views later promoted by Jesus. |
13194 | God's laws would be meaningless without internal powers for following them [Leibniz] |
Full Idea: To say that, in creation, God gave bodies a law for acting means nothing, unless, at the same time, he gave them something by means of which it could happen that the law is followed. | |
From: Gottfried Leibniz (On Body and Force, Against the Cartesians [1702], p.253) | |
A reaction: This is the beginning of the modern rebellion against the medieval view of laws as imposed from outside on passive matter. Unfortunately for Leibniz, once you have postulated active internal powers, the external laws become redundant. |
13196 | All qualities of bodies reduce to forces [Leibniz] |
Full Idea: All qualities of bodies .....are in the end reduced [revoco] to forces. | |
From: Gottfried Leibniz (On Body and Force, Against the Cartesians [1702], p.256) | |
A reaction: The dots conceal a long qualification, but he is essentially standing by this simple remark. If you substitute the word 'powers' for 'forces', I think that is just about right. |
13192 | Power is passive force, which is mass, and active force, which is entelechy or form [Leibniz] |
Full Idea: The dynamicon or power [potentia] in bodies is twofold, passive and active. Passive force [vis] constitutes matter or mass [massa], and active force constitutes entelechy or form. | |
From: Gottfried Leibniz (On Body and Force, Against the Cartesians [1702], p.252) | |
A reaction: This is explicitly equating the innate force understood in physics with Aristotelian form. The passive force is to explain the resistance of bodies. I like the equation of force with power. He says the entelechy is 'analogous' to a soul. |