"Ignorat quid intersit inter aes et lupinum:
He knows not the #DIFFERENCE between money & #Lupins," Ella read without understanding.
Pearl clarified, "It means he can't distinguish between something w/ value & something worthless. Currency always has value, but Lupins were so abundant they were perceived as cheap or valueless."
Ever the #Gardener, Ella protested, "Lupines aren't worthless! Just ask Miss #Rumphius, who secretly #Planted Lupines along our roads."