Quadratic Difference Tones

Famous quotes containing the words difference and/or tones:

    The problem of induction is not a problem of demonstration but a problem of defining the difference between valid and invalid
    predictions.
    Nelson Goodman (1906)

    ‘Tis not that thy mien is stately,
    ‘Tis not that thy tones are soft;
    Charles Stuart Calverley (1831–1884)