Natural Killer Cells

Famous quotes containing the words natural, killer and/or cells:

    “Doubtless, we are as slow to conceive of Paradise as of Heaven, of a perfect natural as of a perfect spiritual world. We see how past ages have loitered and erred. “Is perhaps our generation free from irrationality and error? Have we perhaps reached now the summit of human wisdom, and need no more to look out for mental or physical improvement?” Undoubtedly, we are never so visionary as to be prepared for what the next hour may bring forth.”
    —Henry David Thoreau (1817–1862)

    “Developing the muscles of the soul demands no competitive spirit, no killer instinct, although it may erect pain barriers that the spiritual athlete must crash through.”
    —Germaine Greer (b. 1939)

    “They are sworn enemies of lyric poetry.
    In prison they accompany the jailer,
    Enter cells to hear confessions.
    Their short-end comes down
    When you least expect it.”
    —Charles Simic (b. 1938)