9879
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NF has no models, but just blocks the comprehension axiom, to avoid contradictions [Quine, by Dummett]
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Full Idea:
Quine's New Foundations system of set theory, devised with no model in mind, but on the basis of a hunch that a purely formal restriction on the comprehension axiom would block all contradictions.
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From:
report of Willard Quine (New Foundations for Mathematical Logic [1937]) by Michael Dummett - Frege philosophy of mathematics Ch.18
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A reaction:
The point is that Quine (who had an ontological preference for 'desert landscapes') attempted to do without an ontological commitment to objects (and their subsequent models), with a purely formal system. Quine's NF is not now highly regarded.
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5952
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Rather than being the whole soul, maybe I am its chief part? [Plutarch]
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Full Idea:
Is each of us not the soul, but the chief part of the soul, by which we think and reason and act, all the other parts of soul as well as of body being mere instruments of its power?
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From:
Plutarch (74: Reply to Colotes [c.85], §1119)
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A reaction:
Socrates is associated with the idea that I am my whole soul (Idea 1650). Plutarch represents an interesting development, which may lead both to the Christian 'soul' and to the Cartesian 'ego'. I think Plutarch is right, but what is the 'soul'?
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5951
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If atoms have no qualities, they cannot possibly produce a mind [Plutarch]
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Full Idea:
Perception, mind, intelligence and thought cannot so much as be conceived, even with the best will, as arising among void and atoms, things which taken separately have no quality.
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From:
Plutarch (74: Reply to Colotes [c.85], §1112)
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A reaction:
A nice articulation of the intuition of all anti-physicalists. Plutarch would have to rethink his position carefully if he learned of the sheer number of connections in the brain, and of the theory of natural selection. His challenge remains, though.
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6660
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Libet found conscious choice 0.2 secs before movement, well after unconscious 'readiness potential' [Libet, by Lowe]
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Full Idea:
Libet found that a subject's conscious choice to move was about a fifth of a second before movement, and thus later than the onset of the brain's so-called 'readiness potential', which seems to imply that unconscious processes initiates action.
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From:
report of Benjamin Libet (Unconscious Cerebral Initiative [1985]) by E.J. Lowe - Introduction to the Philosophy of Mind Ch.9
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A reaction:
Of great interest to philosophers! It seems to make conscious choices epiphenomenal. The key move, I think, is to give up the idea of consciousness as being all-or-nothing. My actions are still initiated by 'me', but 'me' shades off into unconsciousness.
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5948
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The good life involves social participation, loyalty, temperance and honesty [Plutarch]
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Full Idea:
To live the good life is to live a life of participation in society, of loyalty to friends, of temperance and honest dealing.
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From:
Plutarch (74: Reply to Colotes [c.85], §1108)
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A reaction:
'Participation in society' is the interesting one. This might translate as 'doing your duty', or as 'leading a well-rounded life'. Solitude is wrong if you are indebted to others, and it is unhealthy if you are not. Is solitude really immoral, though?
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5955
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No one will ever find a city that lacks religious practices [Plutarch]
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Full Idea:
A city without holy places and gods, without any observance of prayers, oaths, oracles, sacrifices for blessings received or rites to avert evils, no traveller has ever seen or will ever see.
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From:
Plutarch (74: Reply to Colotes [c.85], §1125)
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A reaction:
The nearest you might get would be Soviet Moscow, but in 1973 I saw a man there jeering at a woman who was kneeling in the street outside a closed church. Plutarch would be stunned at the decline in religious practices in modern Europe.
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