Ishihara Color Test

Famous quotes containing the words color and/or test:

    All our Concord waters have two colors at least; one when viewed at a distance, and another, more proper, close at hand.... Walden is blue at one time and green at another, even from the same point of view. Lying between the earth and the heavens, it partakes of the color of both.
    Henry David Thoreau (1817–1862)

    The face we see was never young,
    Nor could it ever have been old.

    For he, to whom we had applied
    Our shopman’s test of age and worth,
    Was elemental when he died,
    As he was ancient at his birth:
    Edwin Arlington Robinson (1869–1935)