For the rest of the year, the animals work at a backbreaking pace to farm enough food for themselves and to build the windmill. The leadership cuts the rations—Squealer explains that they have simply “readjusted” them—and the animals receive no food at all unless they work on Sunday afternoons. But because they believe what the leadership tells them—that they are working for their own good now, not for Mr. Jones’s—they are eager to take on the extra labor. Boxer, in particular, commits himself to Animal Farm, doing the work of three horses but never complaining. Even though the farm possesses all of the necessary materials to build the windmill, the project presents a number of difficulties. The animals struggle over how to break the available stone into manageable sizes for building without picks and crowbars, which they are unable to use. They finally solve the problem by learning to raise and then drop big stones into the quarry, smashing them into usable chunks. By late summer, the animals have enough broken stone to begin construction.