It is a stifling, stultifying world in which to live. It is a world in which every word and every thought is censored. In England it is hard even to imagine such an atmosphere. Everyone is free in England; we sell our souls in public and buy them back in private, among our friends. But even friendship can hardly exist when every white man is a cog in the wheels of despotism. Free speech is unthinkable. All other kinds of freedom are permitted. You are free to be a drunkard, an idler, a coward, a backbiter, a fornicator; but you are not free to think for yourself. Your opinion on every subject of any conceivable importance is dictated for you by the pukka sahibs’ code.

George Orwell (1903–1950) English journalist, essayist, writer [pseud. of Eric Arthur Blair]
Burmese Days, ch. 5 (1934)
    (Source)

Of the life of the Englishman John Flory, the protagonist, in Burma, part of the 1920s British Raj. Orwell's first novel, it was based on his own experiences as a police officer in that part of the word. The pukka sahibs were the "excellent fellows," i.e., the European (white) colonialists of the region.