Man’s capacity for abstract thought, which most other mammals seem to lack, has undoubtedly given him his present mastery of the land surface of the earth—a mastery disputed only by several hundred species of microscopic organisms. It is responsible for his feeling of superiority, and under that feeling there is undoubtedly a certain measure of reality, at least within narrow limits. But what is too often overlooked is that the capacity to perform an act is by no means synonymous with its salubrious exercise. The simple fact is that most of man’s thinking is stupid, pointless, and injurious to him. Of all animals, indeed, he seems the least capable of arriving at accurate judgments in the matters that most desperately affect his welfare. Try to imagine a rat, in the realm of rat ideas, arriving at a notion as violently in contempt of plausibility as the notion, say, of Swedenborgianism, or that of homeopathy, or that of infant damnation, or that of mental telepathy. Try to think of a congregation of educated rats gravely listening to such disgusting intellectual rubbish as was in the public bulls of Dr. Woodrow Wilson. Man’s natural instinct, in fact, is never toward what is sound and true; it is toward what is specious and false. Let any great nation of modern times be confronted by two conflicting propositions, the one grounded upon the utmost probability and reasonableness and the other upon the most glaring error, and it will almost invariably embrace the latter. It is so in politics, which consists wholly of a succession of unintelligent crazes, many of them so idiotic that they exist only as battle-cries and shibboleths and are not reducible to logical statement at all. It is so in religion, which, like poetry, is simply a concerted effort to deny the most obvious realities. It is so in nearly every field of thought. The ideas that conquer the race most rapidly and arouse the wildest enthusiasm and are held most tenaciously are precisely the ideas that are most insane. This has been true since the first “advanced” gorilla put on underwear, cultivated a frown and began his first lecture tour in the first chautauqua, and it will be so until the high gods, tired of the farce at last, obliterate the race with one great, final blast of fire, mustard gas and streptococci.