What is noise immunity?

Famous quotes containing the words noise and/or immunity:

    I wonder about the trees.
    Why do we wish to bear
    Forever the noise of these
    More than another noise
    So close to our dwelling place?
    Robert Frost (1874–1963)

    There is immunity in reading, immunity in formal society, in office routine, in the company of old friends and in the giving of officious help to strangers, but there is no sanctuary in one bed from the memory of another. The past with its anguish will break through every defence-line of custom and habit; we must sleep and therefore we must dream.
    Cyril Connolly (1903–1974)