“That our knowledge only illuminates a small corner of the Universe, that it is incomplete, approximate, tentative and merely probable need not concert us. It is genuine nevertheless. Physical science stands as one of the great achievements of the human spirit.” KnowsNeedsHumansScienceSpiritUniverseKnowledgeAchievementCornersGenuineConcertsNeverthelessHuman SpiritIncompleteGreat AchievementPhysical Science Author:Arthur David Ritchie
“The first thing the reasonable man must do is to be content with a very little knowledge and a very great deal of ignorance. The second thing he must do is to make the utmost possible use of the knowledge he has and not waste his energy crying for the moon. The third thing he must do is try and see clearly where his knowledge ends and his ignorance begins.” KnowsMenTryingFirstsLittlesEndsUseScienceEnergyDealsKnowledgeCryIgnoranceMoonWasteThirdsIgnorantReasonableLittle KnowledgeReasonable Man Author:Arthur David Ritchie