Delta Wave Activity

Famous quotes containing the words wave and/or activity:

    Great Powers of falling wave and wind and windy fire,
    With your harmonious choir
    Encircle her I love and sing her into peace,
    That my old care may cease....
    William Butler Yeats (1865–1939)

    The Good of man is the active exercise of his soul’s faculties in conformity with excellence or virtue.... Moreover this activity must occupy a complete lifetime; for one swallow does not make spring, nor does one fine day; and similarly one day or a brief period of happiness does not make a man supremely blessed and happy.
    Aristotle (384–322 B.C.)