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 anti-matter.
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.