... , when we are able to assess a situation clearly, our senses may still deceive us. For example, the tabletop, although it appears to be perfectly square and flat to the naked eye, might on closer examination prove not to be so: the corners might not be at exact right angles, and it might be discovered that, when viewed through a microscope, the table ... outside of the colour spectrum; although we can mix up colours to make a colour that we have never seen before, it would still be a colour essentially composed of a mixture of red, blue or yellow. It is quite impossible for us to imagine...

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• Approx Pages: 11
• Grade Level: Undergraduate