George Orwell said this quote

“ A totalitarian society which succeeded in perpetuating itself would probably set up a schizophrenic system of thought, in which the laws of common sense held good in everyday life and in certain exact sciences, but could be disregarded by the politician, the historian, and the sociologist. Already there are countless people who would think it scandalous to falsify a scientific textbook, but would see nothing wrong in falsifying an historical fact. It is at the point where literature and politics cross that totalitarianism exerts its greatest pressure on the intellectual. The exact sciences are not, at this date, menaced to anything like the same extent. This partly accounts for the fact that in all countries it is easier for the scientists than for the writers to line up behind their respective governments. ”