PhilosophyEducationValuesCongressesInfluenceAims and objectivesAntiquitiesArtsClassical antiquitiesCritical theoryEducation, philosophyModern EthicsPopper, karl r. (karl raimund), 1902-1994RationalismSocial sciencesSocial sciences, philosophyStudy and teachingTeachersTheory of KnowledgeTraining ofWeber, max, 1864-1920