... primitive times had required primitive obedience, that later generations evolved to the point where parents offered themselves as sacrifice - as in the dark knights of the ovens which pocked old earth history - and that current generations had to deny any command for sacrifice. Sol had written that whatever God now took in human consciousness - whether as a mere manifestation of the subconscious in all its revanchist needs or as a more conscious attempt at philosophical and ethical evolution - humankind could no longer agree to offer up sacrifice in God's name. Sacrifice and the agreement to sacrifice had written human history in blood.
Dan Simmons, The Fall of Hyperion
ethics, god, obedience, philosophy