"Lastly, tea--unless one is drinking it in the Russian style--should be drunk WITHOUT SUGAR. I know very well that I am in a minority here. But still, how can you call yourself a true tea-lover if you destroy the flavour of your tea by putting sugar in it? It would be equally reasonable to put in pepper or salt. Tea is meant to be bitter, just as beer is meant to be bitter. If you sweeten it, you are no longer tasting the tea, you are merely tasting the sugar; you could make a very similar drink by dissolving sugar in plain hot water."

Source: George Orwell, Peter Hobley Davison, Ian Angus, Sheila Davison (1998). “Smothered under journalism: 1946”