Goldstein's manifesto is now in Winston's hands. Winston goes to his private room atop Mr. Charrington's shop to read it. Having worked more than 90 hours in five days leading up to the commencement of Hate Week, he is pooped.
He reflects back on Hate Week: the switch-a-roo on the 6th day planned by the Party on which a speaker announced that Oceania was at war with Eastasia, and not Eurasia; the subsequent riots by the masses blaming the switch-a-roo on Goldstein; the overwhelming eighteen hour days he and workers like himself spent in the Records Department to delete any reference to Eurasia having ever been an enemy.
But Winston feels at peace with assisting the Party with its deliberate lie, all because he now has the book in his possession. (It's almost like his supposed rebellion is really a tool of the Party's.)
As Winston reads through Goldstein's The Theory and Practice of Oligarchical Collectivism, Julia joins him in their private sanctuary. He reads to her.
Ironically, the manifesto has its titles lifted from Party slogans (the ones introduced in Chapter One). More or less tracing the political theories underlying capitalism, socialism, and the two nations beside Oceania, the manifesto discusses classism, the necessity of ignorance, poverty, and warfare, as well as power structures in government.
Winston reflects that he has learned no new knowledge thus far. Indeed, he understands the how, but not the why.