Example image of eyePlorer eyePlorer map for 'Concept': Contemporary philosophy Explanation Philosophical theory Abstract object Concept and object Gottlob Frege Mental representation Representational theory of mind Idea Being Ontology Abstraction Characteristic Cognition Meaning Symbol Language Representation Symbology Word Cognitive science Metaphysics Philosophy of mind John Locke John Stuart Mill A System of Logic Arthur Schopenhauer Perception Ideal Reality Friedrich Nietzsche Immanuel Kant A priori and a posteriori Logic Attribute Category (Kant) Quality (philosophy) Schema (Kant) Jerry Fodor William James Empiricism Rationalism Reason Aesthetics Ethics Mathematics Truth Cognitive linguistics Conceptual blending Metaphor