Famous quotes containing the words maintain and/or stability:
“Those great efforts of intellect, upon which the mind sometimes touches, are such that it cannot maintain itself there. It only leaps to them, not as upon a throne, forever, but merely for an instant.”
—Blaise Pascal (1623–1662)
“Two things in America are astonishing: the changeableness of most human behavior and the strange stability of certain principles. Men are constantly on the move, but the spirit of humanity seems almost unmoved.”
—Alexis de Tocqueville (1805–1859)