Scientific Revolutions

Famous quotes containing the words scientific and/or revolutions:

“Bad times have a scientific value. These are occasions a good learner would not miss.”
—Ralph Waldo Emerson (1803–1882)

“If there ever are great revolutions there, they will be caused by the presence of the blacks upon American soil. That is to say, it will not be the equality of social conditions but rather their inequality which may give rise to it.”
—Alexis de Tocqueville (1805–1859)