Combining Philosophers

All the ideas for Anaxarchus, Cian Dorr and Alcmaeon

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6 ideas

8. Modes of Existence / E. Nominalism / 1. Nominalism / c. Nominalism about abstracta

14596	Call 'nominalism' the denial of numbers, properties, relations and sets [Dorr]
	Full Idea: Just as there are no numbers or properties, there are no relations (like 'being heavier than' or 'betweenness'), or sets. I will provisionally use 'nominalism' for the conjunction of these four claims.
	From: Cian Dorr (There Are No Abstract Objects [2008], 1)
	A reaction: If you are going to be a nominalist, do it properly! My starting point in metaphysics is strong sympathy with this view. Right now [Tues 22nd Nov 2011, 10:57 am GMT] I think it is correct.

8. Modes of Existence / E. Nominalism / 5. Class Nominalism

14597	Natural Class Nominalism says there are primitive classes of things resembling in one respect [Dorr]
	Full Idea: Natural Class Nominalists take as primitive the notion of a 'natural' class - a class of things that all resemble one another in some one respect and resemble nothing else in that respect.
	From: Cian Dorr (There Are No Abstract Objects [2008], 4)
	A reaction: Dorr rejects this view because he doesn't believe in 'classes'. How committed to classes do you have to be before you are permitted to talk about them? All vocabulary (such as 'resemble') seems metaphysically tainted in this area.

10. Modality / A. Necessity / 11. Denial of Necessity

14598	Abstracta imply non-logical brute necessities, so only nominalists can deny such things [Dorr]
	Full Idea: If there are abstract objects, there are necessary truths about these things that cannot be reduced to truths of logic. So only the nominalist, who denies that there are any such things, can adequately respect the idea that there are no brute necessities.
	From: Cian Dorr (There Are No Abstract Objects [2008], 4)
	A reaction: This is where two plates of my personal philosophy grind horribly against one another. I love nominalism, and I love natural necessities. They meet like a ring-species in evolution. I'll just call it a 'paradox', and move on (swiftly).

13. Knowledge Criteria / D. Scepticism / 1. Scepticism

3061	Anaxarchus said that he was not even sure that he knew nothing [Anaxarchus, by Diog. Laertius]
	Full Idea: Anaxarchus said that he was not even sure that he knew nothing.
	From: report of Anaxarchus (fragments/reports [c.340 BCE]) by Diogenes Laertius - Lives of Eminent Philosophers 09.10.1

15. Nature of Minds / A. Nature of Mind / 1. Mind / d. Location of mind

5987	Alcmaeon was the first to say the brain is central to thinking [Alcmaeon, by Staden, von]
	Full Idea: Alcmaeon apparently was the first Greek to assign central cognitive and biological functions to the brain.
	From: report of Alcmaeon (fragments/reports [c.490 BCE]) by Heinrich von Staden - Alcmaeon
	A reaction: The name of Alcmaeon should be remembered with honour. This was 200 years before Aristotle, who still hadn't worked it out. I presume Alcmaeon inferred the truth from head injuries, which is overwhelming evidence, if you notice it.

29. Religion / D. Religious Issues / 2. Immortality / b. Soul

24043	Soul must be immortal, since it continually moves, like the heavens [Alcmaeon, by Aristotle]
	Full Idea: Alcmaeon says that the soul is immortal because it resembles immortal things and that this affection belongs to it because it is always in movement, like divine things, such the moon, the sun, the stars and the whole heaven.
	From: report of Alcmaeon (fragments/reports [c.490 BCE], DK 24) by Aristotle - De Anima 405a30
	A reaction: Hm. Fish and rivers seem to be continually moving too. Presumably we are like gods, but then Greek gods seem awfully like humans. I don't know the history of belief in immortality; an interesting topic.