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Quality/Locke: force of an object to produce in us perceptions or ideas - primary qualities: inseparable from object: E.g. strength, extension, figure, movement/rest, number- secondary: cause effects in the outside world, that are projected back into the causing objects. - (in fact forces, no properties) - Eg.g a) colors, smells, etc. - b) softening of wax by heat (seen as a force).
externally from Put I 175)
Properties/qualities/Locke: primary: shape, position, size (objectively) - Secondary: colors, sounds, taste, smell (subjectively) - Locke: discards "substantial forms" (Middle Ages) (> "essential characteristics"): expressions for classification of "water" do not include in any sense features that are "real substances" of these things. - Berkeley: discards both primary and secondary properties - Kant: All properties secondary (for us) the question of the "essential features" of the thing in itself is meaningless (Put I 175)> E.g. Statue/clay.
B. Russell, ABC of Relativity theory 22
Qualities/Locke/Russell: a) primarily: shape, position, size ("objective") - b) Secondary: colors, sounds, smells, tastes ("subjective").
An Essay Concerning Human Understanding