No one can read the history of astronomy without perceiving that Copernicus, Newton, Laplace, are not new men, or a new kind of men, but that Thales, Anaximenes, Hipparchus, Empodocles, Aristorchus, Pythagorus, Oenipodes, had anticipated them.
Ralph Waldo EmersonAction is with the scholar subordinate, but it is essential. Without it, he is not yet man. Without it, thought can never ripen into truth.
Ralph Waldo Emerson