At first, by the murmuring of waters, and afterward by noises among the trees, the sacred impostors interpreted the voice of the god. It is an old truth, that mystery is always imposing and often convenient. To plain questions were given dark answers, which might admit of interpretation according to the event. The importance attached to the oracle, the respect paid to the priest, and the presents heaped on the altar, indicated to craft and ambition a profitable profession. And that profession became doubly alluring to its members, because it proffered to the priests an authority in serving the oracles which they could not obtain in the general religion of the people. Oracles increased then, at first slowly, and afterward rapidly, until they grew so numerous that the single district of Boeotia contained no less than twenty-five. The oracle of Dodona long, however, maintained its pre-eminence over the rest, and was only at last eclipsed by that of Delphi [52], where strong and intoxicating exhalations from a neighbouring stream were supposed to confer prophetic phrensy. Experience augmented the sagacity of the oracles, and the priests, no doubt, intimately acquainted with all the affairs of the states around, and viewing the living contests of action with the coolness of spectators, were often enabled to give shrewd and sensible admonitions,--so that the forethought of wisdom passed for the prescience of divinity. Hence the greater part of their predictions were eminently successful; and when the reverse occurred, the fault was laid on the blind misconstruction of the human applicant. Thus no great design was executed, no city founded, no colony planted, no war undertaken, without the advice of an oracle. In the famine, the pestilence, and the battle, the divine voice was the assuager of terror and the inspirer of hope. All the instincts of our frailer nature, ever yearning for some support that is not of the world, were enlisted in behalf of a superstition which proffered solutions to doubt, and remedies to distress.