Geodesic Null Congruence

Famous quotes containing the words null and/or congruence:

    A strong person makes the law and custom null before his own will.
    Ralph Waldo Emerson (1803–1882)

    As for butterflies, I can hardly conceive
    of one’s attending upon you; but to question
    the congruence of the complement is vain, if it exists.
    Marianne Moore (1887–1972)