The Wisdom Audit, part 1 of 9. This series tests famous sayings against published research and ends each test with a verdict.
Somewhere in your head right now, a proverb is making decisions for you.
Maybe it’s telling you not to job-hunt because the grass is always greener. Maybe it’s telling you to grind through pain at the gym, or to trust that your ten thousand hours will eventually pay off, or to hold off on a decision because you should look before you leap. These sayings feel like knowledge. They arrive early in life, they come from people we trust, and they rhyme. Nobody ever hands us the receipts.
I kept catching these one-liners running as silent policy in my own decisions, and I wanted to know which ones deserved the job. So I audited them. This series takes twenty of the most famous sayings in the English language and checks each one against actual published research: peer-reviewed studies, government datasets, and large-scale analyses, with every source named so you can check my work.
What gets tested, and how
I chose the twenty sayings by two rules. Each one had to be genuinely famous, the kind of phrase you’ve heard since childhood. And each one had to make a claim you can actually test, because “all good things must come to an end” is a mood, but “practice makes perfect” is a measurable prediction about how skill works.
Every test follows the same steps. First, I translate the saying into a claim that data can confirm or deny. Then I trace where the saying actually came from, which turns out to matter more than I expected; several of these “ancient proverbs” were written by advertising executives and workout-video producers. Then I put the claim against the best available research and deliver one of four verdicts:
| Verdict | What it means |
|---|---|
| Holds | The data supports the saying as commonly used |
| Conditional | The saying is true only under specific conditions, which it never mentions |
| Split | Part of the saying survives and part fails, or two rival sayings each own half the truth |
| Fails | The data contradicts the saying as commonly used |
The road map
The twenty sayings group into seven questions, one post each, followed by a finale.
| Part | Post | The question it answers |
|---|---|---|
| 2 | Actions Speak Louder Than Words. Ranked. | Which signals should you trust: appearances, images, actions, or words? |
| 3 | If It Ain’t Broke, Check Anyway | When should you investigate, intervene, or leave things alone? |
| 4 | Look Before You Leap. But Not for Long. | Do speed and boldness pay? |
| 5 | Opposites Attract, and Other Lies About Who to Pick | Who should you pair with, in love and in work? |
| 6 | Practice Makes Twelve Percent | How much does effort actually buy? |
| 7 | The Grass Really Is Greener | Are your expectations lying to you? |
| 8 | Rome Wasn’t Built in a Day. Neither Is Anything. | What is time worth, and how long do results really take? |
| 9 | The Wisdom Audit: Final Report | Which sayings survived, and how do you audit the next one yourself? |
The finale puts every verdict on a single scoreboard and hands you the tool the whole series builds toward: a five-question protocol for auditing any piece of inherited advice on your own, so you never have to take a rhyme’s word for it again.
Some of the results surprised me. The saying with the fakest origin story turned out to be one of the truest. One of the most beloved motivational claims explains twelve percent of what it promises. And the single most decisive verdict in the whole series comes down, improbably, to bedtimes.
That story starts next week.
Next in the series: Actions Speak Louder Than Words. Ranked.
Laurie Stach 