Appetite proves the existence of food, and the food affirms itself by satisfying the appetite.
"Where there is question of a principle there is a class of minds which must study the part a principle has played in history, and is mainly influenced for or against it from its effect on former generations of men.

This class follows the historical road.

Another class is so profoundly moved by the truths of revelation as soon as known, assimilates them so readily and perfectly, becomes so absorbed and lost in them, that the history of revelation is not of primary importance; it is only necessary in order to establish necessary facts, such as the divine institution of an external society, and of other external aids.

But with this philosophical class of minds the truth stands sponsor for itself and is its own best witness.

The impression produced by revelation here and now upon the soul without guile is one of the best probable proofs to that soul of the historical claims of the society to which God entrusted it.