Material Time Derivative

Famous quotes containing the words material, time and/or derivative:

    To one who habitually endeavors to contemplate the true state of things, the political state can hardly be said to have any existence whatever. It is unreal, incredible, and insignificant to him, and for him to endeavor to extract the truth from such lean material is like making sugar from linen rags, when sugar-cane may be had.
    Henry David Thoreau (1817–1862)

    Progress of a marriage:
    “There was a time when you couldn’t
    make me happy.
    Now the time has come when you can’t
    make me unhappy.”
    Irving Layton (b. 1912)

    Poor John Field!—I trust he does not read this, unless he will improve by it,—thinking to live by some derivative old-country mode in this primitive new country.... With his horizon all his own, yet he a poor man, born to be poor, with his inherited Irish poverty or poor life, his Adam’s grandmother and boggy ways, not to rise in this world, he nor his posterity, till their wading webbed bog-trotting feet get talaria to their heels.
    Henry David Thoreau (1817–1862)