Science in Quotes: The Study of Physics“Physical concepts are free creations of the human mind, and are not, however it may seem, uniquely determined by the external world.”SavePrintAmal Chen/The Epoch TimesEpoch Times Staff2/10/2012|Updated: 10/1/2015We had a problem loading this article. Please enable javascript or use a different browser. If the issue persists, please visit our help center.Share this articleLeave a commentEpoch Times StaffAuthorAuthor’s Selected ArticlesLandmark Legal Win for ‘Detransitioner’Feb 03, 2026Day in Photos: Forest Fire in Patagonia, Opposition Protests in Uganda, and Annual Groundhog DayFeb 02, 2026House Races to End Partial ShutdownFeb 02, 2026America in Photos: Snowstorm in Washington, Melania Documentary Launch, and Protests in MinneapolisFeb 01, 2026Related TopicsAlbert EinsteinScienceresearchphysicsrealityquote