The last man
In Chapter 3 Part 3 of George Orwell’s 1984, O’Brien says to Winston: “If you are a man, Winston, you are the last man. Your kind is extinct; we are the inheritors.” When O’Brien says this, he is referring to how Winston is the last human with individual thought, emotions, and an attachment to the past. O’Brien believes that once he “fixes” Winston, the party will be undefeatable because there will be no one left to oppose the government. Winston has the “Spirit of a man” and functions as a normal individual with emotions unlike the rest of Oceania. This is the one thing that could have stopped the party. Once they eliminate individual thought and feelings, there is nothing left to contradict their authority.
Winston is an archetype for the spirit that will defeat the party because he demonstrates and sets the example to others that individual thought is possible. He proved that if one person can rebel, all could. If everyone were to start breaking the rules and rebelling against Big Brother, who would be able to stop them? They would easily outnumber the party members, and some of which, may even rebel themselves. Winston himself was the single idea of rebellion, and was all Oceania needed to find the courage to lead one.