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27. Natural Reality / A. Physics / 1. Matter / e. Greek elements

[earth, air, fire and water etc.]

17 ideas
The sayings of Heraclitus are still correct, if we replace 'fire' with 'energy' [Heisenberg on Heraclitus]
Heraclitus says that at some time everything becomes fire [Aristotle on Heraclitus]
Heraclitus said sometimes everything becomes fire [Aristotle on Heraclitus]
Heraclitus said fire could be transformed to create the other lower elements [Diog. Laertius on Heraclitus]
He taught that there are two elements, fire the maker, and earth the matter [Diog. Laertius on Parmenides]
Anaxagoreans regard the homoeomeries as elements, which compose earth, air, fire and water [Aristotle on Anaxagoras]
Empedocles says bone is water, fire and earth in ratio 2:4:2 [Inwood on Empedocles]
Fire, Water, Air and Earth are elements, being simple as well as homoeomerous [Aristotle on Empedocles]
Empedocles said that there are four material elements, and two further creative elements [Aristotle on Empedocles]
The Four Elements must change into one another, or else alteration is impossible [Aristotle]
Fire is hot and dry; Air is hot and moist; Water is cold and moist; Earth is cold and dry [Aristotle]
An element is what bodies are analysed into, and won't itself divide into something else [Aristotle]
I claim that Aristotle's foundation is the four elements, and not wholly potential prime matter [Gill,ML on Aristotle]
When Aristotle's elements compound they are stable, so why would they ever separate? [Weisberg/Needham/Hendry on Aristotle]
Stoics say earth, air, fire and water are the primary elements [Plutarch on Chrysippus]
Aether moves in circles and is imperishable; the four elements perish, and move in straight lines [Gill,ML]
Lavoisier's elements included four types of earth [Weisberg/Needham/Hendry]