Variable Introduced

Famous quotes containing the words variable and/or introduced:

“There is not so variable a thing in nature as a lady’s head-dress.”
—Joseph Addison (1672–1719)

“While the system of holding people in hostage is as old as the oldest war, a fresher note is introduced when a tyrannic state is at war with its own subjects and may hold any citizen in hostage with no law to restrain it.”
—Vladimir Nabokov (1899–1977)