"Dear students, you must watch the behavior and the activities of your teachers and professors so that if, God forbid, they say something wrong, you see them deviating, right away you must report them to the responsible officials. Teachers and professors, you must be alert to watch your own colleagues to see if some of them are trying to teach deviating thoughts during their lessons to the children of our Islamic nation so that they can be stopped. If this does not work, directly communicate with officials. My dear children, you too take care of one another in the best possible way, and if you observe that some enemies in the appearance of friends or schoolmates are trying to attract your friends, introduce them to the responsible officials, and try to do all these things very secretly. Committed mothers and fathers, watch the comings and goings of your children and observe their activities."
Ayatollah Khomeini (in a message on the first day of the school year, Qom, September 23, 1982)