Colour Vision

Famous quotes containing the words colour and/or vision:

“What a lovely thing a rose is!... Our highest assurance of the goodness of Providence seems to me to rest in the flowers. All other things, our powers, our desires, our food, are all really necessary for our existence in the first instance. But the rose is an extra. Its smell and its colour are an embellishment of life, not a condition of it. It is only goodness which gives extras.”
—Sir Arthur Conan Doyle (1859–1930)

“One will meet, for example, the virtual assumption that what is relative to thought cannot be real. But why not, exactly? Red is relative to sight, but the fact that this or that is in that relation to vision that we call being red is not itself relative to sight; it is a real fact.”
—Charles Sanders Peirce (1839–1914)