Actual Error Covariance

Famous quotes containing the words actual and/or error:

    No actual skeptic, so far as I know, has claimed to disbelieve in an objective world. Skepticism is not a denial of belief, but rather a denial of rational grounds for belief.
    William Pepperell Montague (1842–1910)

    For my part I do, qua lay physicist, believe in physical objects and not in Homer’s gods; and I consider it a scientific error to believe otherwise.
    Willard Van Orman Quine (b. 1908)