Famous quotes containing the words theory, natural and/or selection:
“The theory of the Communists may be summed up in the single sentence: Abolition of private property.”
—Karl Marx (1818–1883)
“A man must find his occasions in himself, it is true. The natural day is very calm, and will hardly reprove his indolence.”
—Henry David Thoreau (1817–1862)
“Every writer is necessarily a critic—that is, each sentence is a skeleton accompanied by enormous activity of rejection; and each selection is governed by general principles concerning truth, force, beauty, and so on.... The critic that is in every fabulist is like the iceberg—nine-tenths of him is under water.”
—Thornton Wilder (1897–1975)