Quote 4
But in the morning a deep silence hung over the farmhouse. Not a pig appeared to be stirring. It was nearly nine o'clock when Squealer made his appearance, walking slowly and dejectedly, his eyes dull, his tail hanging limply behind him, and with every appearance of being seriously ill. He called the animals together and told them that he had a terrible piece of news to impart. Comrade Napoleon was dying! (8.37)
Put away the mourning gear: Napoleon isn't actually dying. He's just foolish enough to think that having a little hangover means he's got one hoof in the grave. (On second though, we totally sympathize. Let that be a lesson, Shmoopers.)
Quote 5
One day in early summer Squealer ordered the sheep to follow him, and led them out to a piece of waste ground at the other end of the farm, which had become overgrown with birch saplings. The sheep spent the whole day there browsing at the leaves under Squealer's supervision. In the evening he returned to the farmhouse himself, but, as it was warm weather, told the sheep to stay where they were. It ended by their remaining there for a whole week, during which time the other animals saw nothing of them. Squealer was with them for the greater part of every day. He was, he said, teaching them to sing a new song, for which privacy was needed. (10.8)
Not a new song—a new motto. After bleating "four legs good, two legs bad" over and over, no wonder it takes them a whole week to learn a new phrase—even if only one word is different.
Quote 6
It had come to his knowledge, he said, that a foolish and wicked rumour had been circulated at the time of Boxer's removal. Some of the animals had noticed that the van which took Boxer away was marked "Horse Slaughterer," and had actually jumped to the conclusion that Boxer was being sent to the knacker's. It was almost unbelievable, said Squealer, that any animal could be so stupid. Surely, he cried indignantly, whisking his tail and skipping from side to side, surely they knew their beloved Leader, Comrade Napoleon, better than that? But the explanation was really very simple. The van had previously been the property of the knacker, and had been bought by the veterinary surgeon, who had not yet painted the old name out. That was how the mistake had arisen. (9.28)
How ironic: the one time the animals are actually being smart—by noticing that the van is painted with "Horse Slaughterer"—Squealer actually tries to convince them that they're being stupid. Apparently, he succeeds.