Just because this is infallibly the case, and the rule, "I sing the song of him whose bread I eat," has always held good, the making of money by philosophy was regarded by the ancients as the characteristic of the sophists.
Hori ekidinezina delako eta erregela aspalditik baliozko izan delako, antzinakoen artean filosofiarekin dirua irabaztea sofisten ezaugarri izan zen.