Free Variables

Famous quotes containing the words free and/or variables:

“The only free road, the Underground Railroad, is owned and managed by the Vigilant Committee. They have tunneled under the whole breadth of the land.”
—Henry David Thoreau (1817–1862)

“The variables of quantification, ‘something,’ ‘nothing,’ ‘everything,’ range over our whole ontology, whatever it may be; and we are convicted of a particular ontological presupposition if, and only if, the alleged presuppositum has to be reckoned among the entities over which our variables range in order to render one of our affirmations true.”
—Willard Van Orman Quine (b. 1908)