Disagreeing-Charlotte was not particularly surprised. She merely looked at the member who had just been asking Mr. Fool about the cost of the offering ritual, waiting for his explanation.
The slender Tower, sitting with his back straight, glanced to either side and continued, "Knowledge shouldn't be provided for free. Take potion formulas, for example. Sharing one with someone else won't make you forget its contents, nor will it stop you from using the formula to concoct potions afterward. Yet a Sequence 7 formula can often sell for 1,500 to 2,000 Gold Riso. Not only does the seller see nothing wrong with this, but the buyer doesn't think there's anything wrong with paying for knowledge either.
"Doesn't such a widespread understanding demonstrate the value of knowledge? If everyone expects to get it for free, eventually no one will be willing to provide knowledge or information."
The Gold Riso was the official gold coin of the Feynapotter Kingdom. It weighed less than half as much as Intis's Gold Louis, but its higher gold content meant that two could usually be exchanged for one Gold Louis.
In other words, in Tower's estimation, a Sequence 7 potion formula was worth over twenty thousand Verl D'Or.
He clearly isn't using this example just to emphasize the value of knowledge. He's also subtly demonstrating his familiarity with that market-he's probably in the Feynapotter Kingdom, which is why he used its currency as an example. Of course, he might be deliberately misleading the others. I need to be careful too, so my everyday habits and choice of words don't give away my identity. As Charlotte considered this, she had to admit that Tower had a point.
A potion formula would indeed not disappear when shared with a second person, but its holder had to bear the risks