"Imam Khomeini explained on numerous occasions that exporting the revolution is the culture of the revolution and the true spirit of the revolution. That Cultural Revolution recognizes no borders, no color, and no race. No wall or gate can stand in its way or prevent its progress. … The difference with Iran's Islamic Revolution is that it influences without the slightest interference in the domestic affairs of other countries. Iran's exporting of its revolution is not by a military threat, but a cultural influence."
January 1, 1970
https://en.wikiquote.org/wiki/Ali_Khamenei