What effect does the repetition of the phrase straight from the horse's mouth have in Chapter 1 of Brave New World?

The repetition of the phrase "straight from the horse's mouth" in Chapter 1 of Brave New World emphasizes the reliance on information from authoritative sources, like the Director of Hatcheries and Conditioning, to establish credibility and control social perceptions. It reinforces the theme of the manipulation of truth and knowledge in the novel, highlighting how information is carefully controlled and disseminated by those in power.