"Ask yourself, What do we want in this country, above all? People want to be happy, isn't that right? Haven't you heard it all your life? I want to be happy, people say. Well, aren't they? Don't we keep them moving, don't we give them fun? That's all we live for, isn't it? For pleasure, for titillation?" (Bradbury 62).
Humans will always be motivated by what makes them happy, and so Beatty acknowledges this and explains that it is the very reason for the world that they live in. They can't have books or anything that will lead to critical thinking because then people become unhappy. The human journey is to find happiness.