Opening Address -- Dynamical Problems of the Relativistic Quark Model -- Partons in the Light of the Cone -- Chiral Invariance and Low-Energy Pion-Pion-Scattering -- The Infrared Problem in Electron Scattering -- Infrared Singularities in Theories with Scalar Massless Particles -- Conformal Invariant Euclidean Quantum Field Theory -- Gauge Theories and Superselection Rules -- Field Structure Through Model Studies: Aspects of Nonrenormalizable Theories -- Renormalized Local Quantum Field Theory and Critical Behaviour -- On Phase Transitions in Open Systems far from Thermal Equilibrium -- Exact Results on the Structure of Matter -- Approach and Return to Equilibrium -- Magnetic Charges and Strings as Building Blocks of Hadrons-Connection between Electromagnetic and Dual Strings -- Summary - First Week -- Summary - Second Week.