The great experimental principle, then, is doubt, that philosophic doubt which leaves to the mind its freedom and initiative, and from which the virtues most valuable to investigators in physiology and medicine are derived.
Claude BernardThe better educated we are and the more acquired information we have, the better prepared shall we find our minds for making great and fruitful discoveries.
Claude BernardWe must keep our freedom of mind, ... and must believe that in nature what is absurd, according to our theories, is not always impossible.
Claude Bernard