5107
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Predicates are substance, quality, place, relation, quantity and action or affection [Aristotle]
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Full Idea:
The categories of predication are substance, quality, place, relation, quantity and action or affection.
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From:
Aristotle (Physics [c.337 BCE], 225b06)
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A reaction:
A note says this omits time from the 'familiar list' of eight predicates.
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5781
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Our important beliefs all, if put into words, take the form of propositions [Russell]
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Full Idea:
The important beliefs, even if they are not the only ones, are those which, if rendered into explicit words, take the form of a proposition.
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From:
Bertrand Russell (On Propositions: What they are, and Meaning [1919], §III)
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A reaction:
This assertion is close to the heart of the twentieth century linking of ontology and epistemology to language. It is open to challenges. Why is non-propositional belief unimportant? Do dogs have important beliefs? Can propositions exist non-verbally?
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5782
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A proposition expressed in words is a 'word-proposition', and one of images an 'image-proposition' [Russell]
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Full Idea:
I shall distinguish a proposition expressed in words as a 'word-proposition', and one consisting of images as an 'image-proposition'.
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From:
Bertrand Russell (On Propositions: What they are, and Meaning [1919], §III)
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A reaction:
This, I think, is good, though it raises the question of what exactly an 'image' is when it is non-visual, as when a dog believes its owner called. This distinction prevents us from regarding all knowledge and ontology as verbal in form.
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