Recently heard a podcast, the guest a history buff and talked about exactly this.

Basically that "happiness" in "...life, liberty, and happiness" the founding fathers meant the pursuit of fulfillment and what makes you a whole human being. Not a life pursuing endless pleasure.

I say this because its really surreal when you keep coming across the same message, within a condensed time frame, from different sources.

It's like the universe is trying to tell you something.