Famous quotes containing the words physical and/or force:
“The struggle for existence holds as much in the intellectual as in the physical world. A theory is a species of thinking, and its right to exist is coextensive with its power of resisting extinction by its rivals.”
—Thomas Henry Huxley (1825–95)
“Not even New Hampshire farms are much for sale.
The farm I made my home on in the mountains
I had to take by force rather than buy.”
—Robert Frost (1874–1963)