Here's a quote from Solzhenitsyn (The Gulag Archipelago) regarding life as a teacher in the Soviet Union:
Or rather, you had to be more of a hypocrite than before, had to tell the children many more lies--because the lies had had time to mature, and to permeate the syllabus in versions painstakingly elaborated by experts on teaching technique and by school inspectors. In every lesson, whether it was pertinent or not, whether you were studying the anatomy of worms or the use of conjunctions in complex sentences, you were required to take a kick at God (even if you yourself believed in Him); you could not omit singing the praises of our boundless freedom (even if you had lain awake expecting a knock in the night); whether you were reading Turgenev to the class or tracing the course of the Dnieper with your ruler, you had to anathematize the poverty-stricken past and hymn our present plenty (though long before the war you and the children had watched whole villages dying of hunger, and in the towns a child's ration had been 300 grams). ... None of this was considered a sin against the truth, against the soul of the child, or against the Holy Ghost.