OBJECTIVES. To answer: Is there reality or only appearance? What is it about Physics that makes everything else “stamp collecting”? Why do both nature and physics become explicable with maths? How do observers see things? Would we recognise a Theory of Everything? Did Quantum Mechanics kill cause? TEXTS. B. Russell: The Relation of Sense- Data to Physics; Kant: Critique of Pure Reason; M. Lange: Locality, Fields, Energy and Mass; T.Kuhn: The Structure of Scientific Revolutions; G. Berkeley: Treatise Concerning Principles of Human Knowledge; K. Popper: The Logic of Scientific Discovery Key Words. Theory, reason,experiment, cause and effect, measurement.