“In a crowd every sentiment and act is contagious, and contagious to such a degree that an individual readily sacrifices his personal interest to the collective interest.” – Gustave Le Bon

法国大革命时期，共有16,549人被guillotin绞刑架砍头。纳粹德国占领并统治法国期间，不下16,500个法国反抗者的头被自己先人发明的绞刑架砍下。