Quadratic Difference Tones

Famous quotes containing the words difference and/or tones:

    The first idea that the child must acquire, in order to be actively disciplined, is that of the difference between good and evil; and the task of the educator lies in seeing that the child does not confound good with immobility and evil with activity.
    Maria Montessori (1870–1952)

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