“There is no such thing as absolute truth and absolute falsehood. The scientific mind should never recognise the perfect truth or the perfect falsehood of any supposed theory or observation. It should carefully weigh the chances of truth and error and grade each in its proper position along the line joining absolute truth and absolute error.” TruthSciencePerfectObservationAbsolute TruthScientificScientific MindAmerican Physical SocietyPerfect Truth Author:Henry Augustus Rowland