In the aftermath of the atrocities of WWII, Maria Montessori gave a speech.
Given the current state of the world, especially with the recent horrific attack on Israel -- really on all civilized human beings -- her talk is well worth hearing.
"... the monster does not come to life all of a sudden. It is not created in one moment, in one hour, in one week, even in one year."
Montessori Education with Jesse McCarthy