6 ideas
4304 | Descartes says there are two substance, Spinoza one, and Leibniz infinitely many [Cottingham] |
6019 | If someone squashed a horse to make a dog, something new would now exist [Mnesarchus] |
4303 | The notion of substance lies at the heart of rationalist metaphysics [Cottingham] |
4306 | For rationalists, it is necessary that effects be deducible from their causes [Cottingham] |
20645 | Heat is a state of vibration, not a substance [Joule] |
20972 | Joule showed that energy converts to heat, and heat to energy [Joule, by Papineau] |