“Morality allows killing in self-defense, in defense of your group, for example during the war. In addition, we have a smaller problem with taking away life when it is done in a non-personal way. That is why modern conflicts are so bloody – it is harder to break through the opponent's spear or to crush his head with a club yourself, than to launch a long-range rocket aimed at a multi-million metropolis.”

Woźniak, Olga; Vetulani, Jerzy (24 December 2011): Stań się dobrym. To się opłaca, interview. Gazeta Wyborcza (in Polish).