Talk:Primary/secondary quality distinction

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[edit] Colourless Apple?

I can imagine an apple without a defined colour but it would be impossible for an apple to be colourless. wouldn't it be more accurate to say "a specific colour". 83.70.219.86 19:33, 28 June 2007 (UTC)

~any apple that is perceived in conditions with zero light would be colourless. The colour is dependent on the media between observer and the observed whereas the shape of the apple is not; the perception of the shape of an apple is dependent but its actual shape is not. Colour can not be distinguished from the perception of colour. 129.67.17.233 (talk) 12:23, 13 May 2008 (UTC)

[edit] Texture

How is texture a secondy quality? The stitching on a cloth is still there even if no one is touching it. The individual threads still exist seperate from one another... They don't blend together and become smooth when no one is feeling it. Same with the holes in a sponge, the bumps on tree bark, and grains on sand paper.