As the proceedings of a symposium in honor of Victor Weisskopf at MIT, this volume contains papers by leaders of physics at the time, including M Delbruck, M Gell-Mann, H Bethe, T D Lee, B R Mottelson, W K H Panofsky, E Purcell, J Schwinger, S M Ulam, and others. Some papers address problems in the philosophy of physics, and physics and society, that are timeless in nature. But the symposium had a historical significance, in that it took place at a historic juncture of particle physics - the emergence of the Standard Model owing to experiments that point to the existence of quarks. Some of the papers reflect both the pre-quark and post-quark points of view. For these reasons, these proceedings merit reissue and reexamination.
Foreword to the Reissue (K Huang); The Energy Problem (H Bethe); Model-free Views of Deep Inelastic Scattering (J Schwinger); Life at Low Reynolds Number (E M Purcell); A Possible New Form of Matter at High Density (T D Lee); The World as Quarks, Leptons and Bosons (M Gell-Mann); What Angular Momentum Can Do to the Nucleus (B R Mottelson); Physics for Mathematicians (S M Ulam); How Aristotle Discovered DNA (M Delbruck); Is Negotiated Arms Control Possible? (W K H Panofsky); The Third Culture (D Hawkins).