Ernst Bloch said this quote

“ Being doped is a pleasure you pay for. There was always opium there for the people -- in the end it tainted their whole faith. If the Church had not always stood so watchfully behind the ruling powers, there would not have been such attacks against everything it stood for -- although of course it may have been competing with them for the first place among the rulers, as in the Middle Ages. Whenever it was a question of keeping the serfs, and then the paid slaves down, the dope-dealers came unfailingly to the help of the oppressors. ”