EntityQ7048977· pop 23· linked from 88 articlesabstract entitySign in to saveentity that does not have a physical existence, including abstract objects and propertiesConnectionsmind–body dualismEntityabstract and concreteEntityAristotleEntityPlatoEntityImmanuel KantEntityRené DescartesEntitynumberEntityredEntityThomas AquinasEntityJohn LockeEntityArtificial intelligenceConceptGottfried Wilhelm LeibnizEntityAlan TuringEntitymindEntityBenedictus de SpinozaEntityLudwig WittgensteinEntityInternational Standard Book NumberEntityDavid HumeEntityangelEntityMartin HeideggerEntityCategoriesConcepts in metaphysicsOntology