Actual Error Covariance

Famous quotes containing the words actual and/or error:

    “The best way to hate is the worst.
    ‘Tis to find what the hated need,
    Never mind of what actual worth,
    And wipe that out of the earth.
    Let them die of unsatisfied greed....”
    Robert Frost (1874–1963)

    There exists a black kingdom which the eyes of man avoid because its landscape fails signally to flatter them. This darkness, which he imagines he can dispense with in describing the light, is error with its unknown characteristics.... Error is certainty’s constant companion. Error is the corollary of evidence. And anything said about truth may equally well be said about error: the delusion will be no greater.
    Louis Aragon (1897–1982)