One woman approached me as she walked past and, pointing to her four children who were manfully helping the smallest ones over the rough ground, whispered: 'How can you bring yourself to kill such beautiful, darling children? Have you no heart at all?' One old man, as he passed me, hissed: 'Germany will pay a heavy penance for this mass murder of the Jews.' His eyes glowed with hatred as he said this. Nevertheless he walked calmly into the gas-chamber.

Quoted in "Commandant of Auschwitz: The Autobiography of Rudolf Hoess" - Page 150 - by Rudolf Hoess, Constantine Fitzgibbon, Primo Levi, Joachim Neugroschel - History