Nations Angola Verification

Famous quotes containing the words nations and/or verification:

    “The soldier takes pride in saluting his Captain,
    The devotee proffers a knee to his Lord,
    Some back a mare thrown from a thoroughbred,
    Troy backed its Helen, Troy died and adored;
    Great nations blossom above,
    A slave bows down to a slave.”
    —William Butler Yeats (1865–1939)

    “Science is a system of statements based on direct experience, and controlled by experimental verification. Verification in science is not, however, of single statements but of the entire system or a sub-system of such statements.”
    —Rudolf Carnap (1891–1970)