David Ricardo Quotes about Values

The demand for money is regulated entirely by its value, and its value by its quantity.
David Ricardo, John Ramsay McCulloch (1852). “The Works of David Ricardo. With a notice of the life and writings of the author: by J. R. McCulloch”, p.114
Utility then is not the measure of exchangeable value, although it is absolutely essential to it.
David Ricardo, John Ramsay McCulloch (1852). “The Works of David Ricardo. With a notice of the life and writings of the author: by J. R. McCulloch”, p.9