CONTENTS -- Preface -- Howard Baer and Alexander Belyaev -- 1. Introduction Howard Baer -- References -- 2. Paul Dirac: Building Bridges of the Mind Laurie M. Brown -- 1. Sketch of Dirac's Early Life -- 2. Classical and Modern Physics -- 3. Quantum Statistics -- 4. The Bridge between Classical and Quantum Electrodynamics -- 5. The Bridge between Quantum Mechanics and Relativity -- 6. And Other Bridges -- Appendix. Some Other Important Work of Dirac -- References -- 3. From Reminiscences to Outlook Leopold Halpern -- References -- 4. My Father Monica Dirac -- 5. The Dirac Equation Rank Wilczek -- 7. Dirac's Problem and the Unity of Nature -- 8. The Early Payoff: Spin -- 9. The Dramatic Surprise: Antimatter -- 10. The Deepest Meanings: Quantum Field Theory -- 11. Aftermaths -- 11.1. QED and Magnetic Moments -- 11.2. QCD and the Theory of Matter -- 12. The Fertility of Reason -- Acknowledgments -- References -- 6. Anomalous Magnetic Moments William J. Marciano -- 13. The Dirac Equation and g = 2 -- 14. The Electron Anomalous Magnetic Moment -- 15. The Muon Anomalous Magnetic Moment -- 16. Supersymmetry -- 17. Other "New Physics" Effects -- 18. Outlook -- References -- 7. Dirac's Footsteps and Supersymmetry Pierre Ramond -- 19. Dirac's equation -- 20. Divergences and Group Theory -- 21. Euler Triplets -- 22. Kostant Equation -- 23. A Zero Sum Game -- Acknowledgments -- References -- 8. P.A.M. Dirac and the Development of Modern General Relativity Stanley Deser -- References -- 9. Building Atomic Nuclei with the Dirac Equation Brian D. Serot -- 24. Introduction -- 25. Why Use Hadrons? -- 26. Why Use the Dirac Equation? -- 27. A Simple Model of Nuclear Matter -- 28. Mean-Field Theory for Nuclei -- 29. Modern Developments -- 30. Summary -- Acknowledgments -- References -- 10. New Focus on Neutrinos Vernon Barger -- 31. Model Building.

32. Neutrino Counting -- 33. Neutrino Mixing -- 34. Solar Neutrinos -- 35. Reactor Anti-neutrinos -- 36. Atmospheric Neutrinos -- 37. Absolute Neutrino Mass -- 38. Future Agenda -- 39. The Outlier: LSND -- Acknowledgments -- References -- 11. Dirac's Magnetic Monopoles (Again) Roman W. Jackiw -- References -- 12. Monopoles, Duality, and String Theory Joe Polchinski -- 40. Theory -- 41. The Necessity of Monopoles -- 41.1. Grand Unification -- 41.2. Kaluza-Klein Theory -- 41.3. U(1) Lattice Gauge Theory -- 41.4. The Kalb-Ramond Field -- 41.5. D-Branes -- 42. Conclusions -- 42.1. The Existence of Monopoles -- 42.2. Duality and Beauty -- Acknowledgments -- References -- 13. Time Variation of Fundamental Constants as a Probe of New Physics Paul Langacker -- 43. Introduction -- 44. Theoretical motivations -- 45. Search for varying -- 46. Correlations with s, h, v, GN -- 47. Conclusions -- Acknowledgments -- References -- 14. Amending the Standard Model of Particle Physics Maurice Goldhaber -- Part 1 -- Rules -- Part 2 -- Conclusions suggested by the Rules -- Part 3 -- Attempts to Explain the Rules -- Acknowledgements -- References.