The phrase "pursuit of happiness" gets thrown around so often it's lost most of its weight. Thomas Jefferson bolted it into the Declaration of Independence in 1776, and we've been chasing it ever since. But what exactly are we chasing?
Here's the thing most people miss: Jefferson borrowed the idea from John Locke, who originally wrote "life, liberty, and property." The swap was deliberate. Happiness, in the 18th-century sense, didn't mean feeling good. It meant living well. Flourishing. The Greek word eudaimonia comes closest.
The Hedonic Treadmill Problem
Psychologist Philip Brickman studied lottery winners in 1978 and found something that still unsettles people. Within a year or so, winners returned to roughly the same level of happiness they'd had before the windfall. The same held true (in reverse) for people who'd suffered serious accidents.
This is the hedonic treadmill. We adapt. Good things stop feeling good. Bad things stop feeling quite so bad. The baseline reasserts itself.
Sonja Lyubomirsky's research at UC Riverside puts numbers on it: roughly 50% of our happiness is determined by genetics, 10% by circumstances, and 40% by intentional activities. That last figure is the one worth paying attention to. It's the part we can actually shape.
Self-Knowledge as Raw Material
Most happiness advice skips a critical step. It tells you what to do (meditate, exercise, practise gratitude) without first asking who you are. But a gratitude journal won't help someone whose core problem is loneliness. A morning run won't fix a values conflict at work.
The psychologist Kennon Sheldon has spent decades studying goal pursuit. His consistent finding: people are happiest when pursuing goals that align with their authentic interests and values, what he calls "self-concordant" goals. Goals imposed by others, or chosen for status, tend to leave people hollow even when achieved.
Self-discovery isn't navel-gazing. It's reconnaissance. You're mapping the terrain before you build anything.
Designing for Happiness
Once you know what actually matters to you (not what's supposed to matter, not what Instagram suggests should matter), you can start making deliberate choices. Small ones, mostly.
Bill Burnett and Dave Evans at Stanford built an entire course around this idea, treating life decisions the way a designer treats a product. Prototype. Test. Iterate. Their approach strips away the pressure of finding "the one right answer" and replaces it with curiosity.
The most useful question isn't "Am I happy?" but "What conditions help me flourish?" Those conditions are different for everyone. Some people need solitude. Others wither without community. Some need creative work. Others need structure and predictability.
The pursuit, then, isn't a straight line. It's a feedback loop: try something, notice how it lands, adjust.
A Masamichi Souzou Perspective
We think of happiness as something you design with, not just design for. When organisations understand what genuinely drives human flourishing, they make better decisions, build better products, create better cultures. The pursuit never really ends, but that's rather the point.