Capitalisation and the positioning of the tricolon as centred within the page in the books illustrates the importance of the party slogans. The Party's three slogans are also telling, as each one is an oxymoron — in reality, war is the opposite of peace, freedom is the opposite of slavery, and ignorance tends to make people vulnerable and weak rather than strong. Orwell uses parallel structure to remind us of the importance of the Party and shows that each repeated structure is of equal importance. Similarly, each aspect of Oceania is of equal importance to the Party’s stability and ability to maintain control.
By presenting these self-evidently false phrases as the irrefutable truth, the Party conditions its members to reject the logic they know to be true and instead to accept whatever the government tells them: that war and slavery benefit society, and that remaining ignorant is in people's best interests. In doing so, the Party is able to control reality: what's true becomes false, and what's false becomes true. And by pairing these phrases with Big Brother's face, the government sends the subliminal message that whoever dares to reject these logical fallacies and think for themselves will face dire consequences.