Material Time Derivative

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

    “If someone took the finest marble and knew how to shape it artfully: Prometheus’ material was lowly clay, but his statues walked.”
    —Franz Grillparzer (1791–1872)

    “The true reformer does not want time, nor money, nor coöperation, nor advice. What is time but the stuff delay is made of? And depend upon it, our virtue will not live on the interest of our money. He expects no income, but outgoes; so soon as we begin to count the cost, the cost begins. And as for advice, the information floating in the atmosphere of society is as evanescent and unserviceable to him as gossamer for clubs of Hercules.”
    —Henry David Thoreau (1817–1862)

    “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)