Authors:
  • In our lives we have known hell and heaven; the final balance, however, is that we helped pave the way to dynamic harmony in this earthly house. That, I believe, is the meaning of this live.

    Letter to a friend in July 1981. "In Memoriam R. W. van Bemmelen," Geologie en Mijnbouw, Volume 63, No. 1, 1984.