Wave Guide Port

Famous quotes containing the words wave, guide and/or port:

    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)

    If we can find a principle to guide us in the handling of the child between nine and eighteen months, we can see that we need to allow enough opportunity for handling and investigation of objects to further intellectual development and just enough restriction required for family harmony and for the safety of the child.
    Selma H. Fraiberg (20th century)

    It is by a mathematical point only that we are wise, as the sailor or the fugitive slave keeps the polestar in his eye; but that is sufficient guidance for all our life. We may not arrive at our port within a calculable period, but we would preserve the true course.
    Henry David Thoreau (1817–1862)