When it comes to money, where we feel our clear interest, we have an entire art where the tester uses many means to discover the worth … just as we give great attention to judging things that might steer us badly. But when it comes to our own ruling principle, we yawn and doze off, accepting any appearance that flashes by without counting the cost.
—Epictetus, Discourses, 1.20.8;11
When coins were much more rudimentary, people had to spend a lot of time testing them to confirm the currency they’d just received was genuine. The Greek word dokimazein means “to assay” or check the quality of a mineral ore. Merchants were often skilled enough that they could test coinage by throwing it against a hard surface and listen to the note it rang. Even today, though, if someone were to hand you a hundred-dollar bill, you might rub it between your fingers or hold it up to the light, just to confirm it wasn’t a fake.
All this for an imaginary currency, an invention of society. The point of this metaphor is to highlight how much effort we put into making sure money is real, whereas we accept potentially life-changing thoughts or assumptions without so much as a question. One ironic assumption along these lies: that having a lot of money makes you wealthy. Or that because a lot of people believe something, it must be true.
Really, we should be testing these notions as vigilantly as a money changer. For, as Epictetus reminds us, “the first and greatest task of the philosopher is to test and separate appearances, and to act on nothing that is untested.”
* Source: The Daily Stoic by Ryan Holiday and Stephen Hanselman