Interview with Paul Adrien Maurice Dirac (1902–1984), Nobel Prize in Physics 1933, "for the discovery of new productive forms of atomic theory". Topics discussed:
Symmetry as central concept in theoretical physics.
Space and time according to Lorentz.
Matter and antimatter.
Dirac's definition of symmetry.
Fermions, Negative energy levels.
Einstein's general theory of relativity.
Natural times and lengths.
Cosmology and gravitation.
Relativistic quantum mechanics.
Atomic constants.