Who are you asking that a teacher is an engineer of the mind? This sentence was said by Gary Ning.

Mikhail Ivanovich Kalinin is one of the outstanding leaders of communist party and the Soviet Union. He said that many teachers often forget that they should be educators, and educators, that is, engineers of human souls, are the first architects who put forward that teachers should be called souls. This figure was the nominal head of state of Russia and the Soviet Union from the October Revolution until his death.