Introduction.- Jordan, Pauli, Politics, Brecht...and a Variable Gravitational Constant. Thomsom Scattering in an Expanding Universe.- Geometrical Formulation of Quantum Mechanics.- General Covariance is Bose-Einstein Statistics.- The Split and Propagation of Light Rays in Relativity.- How to Define a Unique Vacuum in Cosmology.- EIH Theory and Noether's Theorem.- The Static Cylinder in General Relativity.- Gravity and the Tenacious Scalar Field.- The Cavendish Experiment in General Relativity.- Wave Maps in General Relativity.- General Relativty and Experiment.- Some Developments in Newtonian Cosmology.- Deviation of Geodesics in FLRW Spacetime Geometries.- Poincairé Pseudo-symmetries in Asymptotically Flat Spacetimes.- Taub Numbers and Asymptotic Invariants.- Second Class Constraints.- On the Structure of the Energy-momentum and the Spin Currents in Dirac's Electron Theory.- The Physical Reality of the Quantum Wave Function.- The Ultimate Extension of the Bianchi Classification for Rotating Dust Models.- On the Classification of the Real Four-dimensional Lie Algebras.- Spinning Universes in Newtonian Cosmology.- Relativistic Gravitational Fields with Close Newtonian Analogs.- Working with Engelbert.- Some Remarks on Twistor Theory.- Critique of the Wheeler-De Witt Equation.- A New Version of the Heavenly Equation.- A Plain Man's Guide to Bivectors, Biquarernion, and the Algebra and Geometry of Lorentz Transformations.- Leon Lichtenstein's Work on Rotating Fluids.- Decaying Neutrinos and the Flattening of the Galactic Halo.- The Kasner Condition and Inhomogeneous Perfect Fluid Cosmologies.- Gravitational Screening.- On the Interpretation of the Einstein- Cartan Formalism.- On Complex Structures in Physics.- The Englebert Experience: Pathways from the Past.- Curriculum Vita.