"The citizen of Oceania is not allowed to know anything of the tenets of the other two philosphies, but he is taught to execrate them as barbarous outrages upon morality and common sense. Actually, the three philosophies are barely distinguishable."

This quote tells of how the citizen of Oceania uses no reason in determining whether the philosophies of other countries are correct or not. They just mark them out as wrong and unjust no matter what the facts are.