The President of the United States, or the governor of the commonwealth, may be an excellent man; but if I want an office, and he fails to appoint me to it, why I don't exactly regard him as such. He becomes to me a very ordinary and vulgar sort of man indeed; but if he give me my office, then, though he may be all that his enemies think him, he seems to me to be invested with a singular nobility of character that other people do not apprehend at all. The vices of humanity are sad media through which to receive truth--often so opaque that no truth can reach the mind at all. It is impossible for a man whose affections are bestialized, whose practices are libertine, and whose imaginations are all impure, to receive the truth that there are such things as purity and virtue, and that there are men and women around him who are virtuous and pure. There is no truth which personal vice will not distort. The approaches to a sensual mind are through the senses, and the same may be said of all minds in a general way; but the approaches to a sensual mind are only through the senses, and they, being perverted, abused, exhausted, or unduly excited, furnish the utterly unreliable avenues by which truth reaches the soul. The grand reason why truth, published from the pulpit and the platform, revealed in periodicals and books, and embodied in pictures and statues, works no greater changes upon the minds and morals of men, is, that it never gets inside of men in the shape in which it is uttered. It passes through such media of bigotry, or self-interest, or vice, that its identity and power are lost. It is not, therefore, remarkable that so little truth is told when so little is received--that so little is expressed when so little is apprehended. The largest field will not produce an oat-straw that will stand alone, if there be no silica in the soil, and the largest mind cannot express a pure truth if it has lived always so encased that pure truth could not find its way into it. All truth reaches our minds through various media, by which it is more or less colored and refracted; and it is very rare that a man has the power to embody in language and utter a truth in the degree of perfection in which he received it. As I said at beginning, the power to state a fact correctly, or to express a pure truth, is among the rarest gifts of man. It never struck me that David was remarkably hasty, when he said that all men were liars. All men are liars, in one respect or another. They are divisible into various classes, which may legitimately be mentioned under two heads, viz., unconscious liars and conscious liars.