Internal Direct Sum

Famous quotes containing the words internal, direct and/or sum:

    “The burning of rebellious thoughts in the little breast, of internal hatred and opposition, could not long go on without slight whiffs of external smoke, such as mark the course of subterranean fire.”
    —Harriet Beecher Stowe (1811–1896)

    “I should say that the most prominent scientific men of our country, and perhaps of this age, are either serving the arts and not pure science, or are performing faithful but quite subordinate labors in particular departments. They make no steady and systematic approaches to the central fact.... There is wanting constant and accurate observation with enough of theory to direct and discipline it. But, above all, there is wanting genius.”
    —Henry David Thoreau (1817–1862)

    “To help, to continually help and share, that is the sum of all knowledge; that is the meaning of art.”
    —Eleonora Duse (1859–1924)