A religious biography, lately published, affords us an instance of this spontaneous perception of truth in the province of revealed doctrine. “Her firm faith,” says the Author of the Preface, “was so vivid in its character, that it was almost like an intuition of the entire prospect of revealed truth. Let an error against faith be concealed under expressions however abstruse, and her sure instinct found it out. I have tried this experiment repeatedly. She might not be able to separate the heresy by analysis, but she saw, and felt, and suffered from its presence.(29)” And so of the great fundamental truths of religion, natural and revealed, and as regards the mass of religious men: these truths, doubtless, may be proved and defended by an array of invincible logical arguments, but such is not commonly the method in which those same logical arguments make their way into our minds. The grounds, on which we hold the divine origin of the Church, and the previous truths which are taught us by nature—the being of a God, and the immortality of the soul—are felt by most men to be recondite and impalpable, in proportion to their depth and reality. As we cannot see ourselves, so we cannot well see intellectual motives which are so intimately ours, and which spring up from the very constitution of our minds; and while we refuse to admit the notion that religion has not irrefragable arguments in its behalf, still the attempts to argue, on the part of an individual _hic et nunc_, will sometimes only confuse his apprehension of sacred objects, and subtracts from his devotion quite as much as it adds to his knowledge. This is found in the case of other perceptions besides that of faith. It is the case of nature against art: of course, if possible, nature and art should be combined, but sometimes they are incompatible. Thus, in the case of calculating boys, it is said, I know not with what truth, that to teach them the ordinary rules of arithmetic is to endanger or to destroy the extraordinary endowment. And men who have the gift of playing on an instrument by ear, are sometimes afraid to learn by rule, lest they should lose it.