“Words, he often wrote, are themselves sacred, God’s tool for creating the universe, and our tools for bringing holiness — or evil — into the world.  He used to remind us that the Holocaust did not begin with the building of crematoria, and Hitler did not come to power with tanks and guns; it all began with uttering evil words, with defamation, with language and propaganda. Words create worlds he used to tell me when I was a child.  They must be used very carefully. Some words, once having been uttered, gain eternity and can never be withdrawn. The Book of Proverbs reminds us, he wrote, that death and life are in the power of the tongue.” Rabbi Susannah Heschel, speaking of her father, Rabbi Abraham Joshua Heschel