“If one harbours anywhere in one's mind a nationalistic loyalty or hatred, certain facts, although in a sense known to be true, are inadmissible. Here are just a few examples. I list below five types of nationalist, and against each I append a fact which it is impossible for that type of nationalist to accept, even in his secret thoughts:
: BRITISH TORY. Britain will come out of this war with reduced power and prestige.
: COMMUNIST. If she had not been aided by Britain and America, Russia would have been defeated by Germany.
: IRISH NATIONALIST. Eire can only remain independent because of British protection.
: TROTSKYIST. The Stalin regime is accepted by the Russian masses.
: PACIFIST. Those who "abjure" violence can only do so because others are committing violence on their behalf.
All of these facts are grossly obvious if one's emotions do not happen to be involved: but to the kind of person named in each case they are also intolerable, and so they have to be denied, and false theories constructed upon their denial. I come back to the astonishing failure of military prediction in the present war. It is, I think, true to say that the intelligentsia have been more wrong about the progress of the war than the common people, and that they were more swayed by partisan feelings. The average intellectual of the Left believed, for instance, that the war was lost in 1940, that the Germans were bound to overrun Egypt in 1942, that the Japanese would never be driven out of the lands they had conquered, and that the Anglo-American bombing offensive was making no impression on Germany. He could believe these things because his hatred for the British ruling class forbade him to admit that British plans could succeed. There is no limit to the follies that can be swallowed if one is under the influence of feelings of this kind. I have heard it confidently stated, for instance, that the American troops had been brought to Europe not to fight the Germans but to crush an English revolution. One has to belong to the intelligentsia to believe things like that: no ordinary man could be such a fool.”

Notes on Nationalism (1945)