This was Horace Mann. He helped create and design the first educational system in the United States, he was the Massachusetts' Secretary of the Board of Education and he started the "Mann's Six Principles", which were his thoughts of how he would choose decisions. He did a lot for schooling and shaped it how it really is today.
An Invisible Warfare is basically when the victims of an attack are unaware and without warning nor immediate knowledge are being attacked.
I would like to answer, but not enough info..
It is a spoken curse that people would speak out of their mouth. It is a curse paragraph.
