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Single Idea 6725

[filed under theme 12. Knowledge Sources / B. Perception / 2. Qualities in Perception / c. Primary qualities ]

Full Idea

Some thinkers (e.g. Locke) understand by matter an inert, senseless substance, in which extension, figure and motion do actually subsist.

Gist of Idea

Locke believes matter is an inert, senseless substance, with extension, figure and motion

Source

report of John Locke (Essay Conc Human Understanding (2nd Ed) [1694]) by George Berkeley - The Principles of Human Knowledge §9

Book Ref

Berkeley,George: 'The Principles of Human Knowledge etc.', ed/tr. Warnock,G.J. [Fontana 1962], p.69


A Reaction

Berkeley, of course, goes on to reject this. Personally I agree with Locke, because I am a realist, and I think the seventeenth century distinction between primary and secondary qualities is a key contribution to human understanding.


The 21 ideas with the same theme [qualities considered independent of observation]:

Many objects of sensation are common to all the senses [Aristotle]
Atoms only have shape, weight and size, and the properties which accompany shape [Epicurus]
Primary qualities are the cause of all the other sensible qualities [Albertus Magnus]
The primary qualities are mixed to cause secondary qualities [Burley]
For Descartes, objects have one primary quality, which is geometrical [Descartes, by Robinson,H]
Locke believes matter is an inert, senseless substance, with extension, figure and motion [Locke, by Berkeley]
Qualities are named as primary if they are needed for scientific explanation [Locke, by Alexander,P]
Primary qualities produce simple ideas, such as solidity, extension, motion and number [Locke]
Ideas of primary qualities resemble their objects, but those of secondary qualities don't [Locke]
In Locke, the primary qualities are also powers [Locke, by Heil]
Primary qualities (such as shape, solidity, mass) are held to really exist, unlike secondary qualities [Berkeley]
Primary qualities are the object of mathematics [Reid]
Primary qualities are number, figure, size, texture, motion, configuration, impenetrability and (?) mass [Ellis]
You don't need to know how a square thing looks or feels to understand squareness [McGinn]
Touch doesn't provide direct experience of primary qualities, because touch feels temperature [McGinn]
We can perceive objectively, because primary qualities are not mind-created [McGinn]
Touch only seems to reveal primary qualities [Scruton]
We say objects possess no intrinsic secondary qualities because physicists don't need them [Robinson,H]
Primary qualities can be described mathematically, unlike secondary qualities [Cardinal/Hayward/Jones]
An object cannot remain an object without its primary qualities [Cardinal/Hayward/Jones]
The aspects of objects that can be mathematical allow it to have objective properties [Meillassoux]