Actual Error Covariance

Famous quotes containing the words actual and/or error:

    The persons who constitute the natural aristocracy, are not found in the actual aristocracy, or, only on its edge; as the chemical energy of the spectrum is found to be greatest just outside of the spectrum.
    Ralph Waldo Emerson (1803–1882)

    It is not to everyone’s taste that truth should be pronounced pleasant. But at least let no one believe that error becomes truth when it is pronounced unpleasant.
    Friedrich Nietzsche (1844–1900)