The article begins:

“Colour is among the many most difficult features of our expertise to explain. Spectrophotometers and colorimeters can quantify mild waves, but their measurements have little impression on our feeling for colour. Because the thinker Zeno Vendler put it, “Vincent van Gogh beloved the colour yellow—and definitely not due to its wavelength.” Colour is notorious for its variability in language and notion. How can we all know that what we’re seeing is similar as what another person sees? How can we separate what we’re seeing from the factor itself? Or, as Ludwig Wittgenstein requested in his Remarks on Color, “The place will we draw the road right here between logic and expertise?” Within the Remarks, written the yr earlier than his dying in 1951, the thinker’s ideas about colour invariably lead again to the examine of philosophy. What issues are knowable? How are they identified? What will be decided by way of philosophical reasoning? Wittgenstein mirrored, “Colours are a stimulus to philosophizing.”