Quantity Theory

Famous quotes containing the words quantity and/or theory:

“Value is the life-giving power of anything; cost, the quantity of labour required to produce it; its price, the quantity of labour which its possessor will take in exchange for it.”
—John Ruskin (1819–1900)

“Every theory is a self-fulfilling prophecy that orders experience into the framework it provides.”
—Ruth Hubbard (b. 1924)