David Benioff said this quote
“ Stalin goes to visit one of the collectives outside of Moscow,” began Kolya in his joke-telling voice. “Wants to see how they’re getting on with the latest Five-Year Plan. ‘Tell me, comrade,’ he asks one farmer. ‘How did the potatoes do this year?’ ‘Very well, Comrade Stalin. If we piled them up, they would reach God.’ ‘But God does not exist, Comrade Farmer.’ ‘Nor do the potatoes, Comrade Stalin. ”