The Persian records seem rather to imply actual independence of Media; but as national vanity would prompt to dissimulation in such a case, we may perhaps accord so much weight to the statement of Herodotus, and to the general tradition on the subject, as to believe that there was some kind of acknowledgment of Median supremacy on the part of the Persian kings anterior to Cyrus, though the acknowledgment may have been not much more than a formality and have imposed no onerous obligations.

The residence of Cyrus at the Median Court, which is asserted in almost every narrative of his life before he became king, inexplicable if Persia was independent, becomes thoroughly intelligible on the supposition that she was a great Median feudatory.

In such cases the residence of the Crown Prince at the capital of the suzerain is constantly desired, or even required by the superior Power, which sees in the presence of the son and heir the best security against disaffection or rebellion on the part of the father.
It appears that Cyrus, while at the Median Court, observing the unwarlike temper of the existing generation of the Medes, who had not seen any actual service, and despising the personal character of the monarch, who led a luxurious life, chiefly at Ecbatana, amid eunuchs, concubines, and dancing-girls, resolved on raising the standard of rebellion, and seeking at any rate to free his own country.

It may be suspected that the Persian prince was not actuated solely by political motives.

To earnest Zoroastrians, such as the Achgemenians are shown to have been by their inscriptions, the yoke of a Power which had so greatly corrupted, if it had not wholly laid aside, the worship of Ormazd, must have been extremely distasteful; and Cyrus may have wished by his rebellion as much to vindicate the honor of his religion--as to obtain a loftier position for his nation.