How many car ads have you seen with grandiose speeches over the years?
这么多年来，你看到过多少汽车广告的广告语夸夸其谈？
Big declarations?
言过其实的声明？
Making claims to some overarching human truth?
宣扬一些真实的人性需求？

Companies call these commercials "manifestos".
企业把这些广告称为“宣传”。
There's your manifesto.
而这才你是的宣言。