Famous quotes containing the words derivative and/or contracts:
“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)
“If love closes, the self contracts and hardens: the mind having nothing else to occupy its attention and give it that change and renewal it requires, busies itself more and more with self-feeling, which takes on narrow and disgusting forms, like avarice, arrogance and fatuity.”
—Charles Horton Cooley (1864–1929)