The pleasurable feelings we experience upon the reading of a good book, or the discovery of real poetry, are forms of intellectual emotion. The same class of emotional feeling is aroused when we witness a good play. Among other instances of this class we mention the perception of clever work of any kind, intricate machinery, ingenious devices, helpful improvements, or other works of man which indicate the existence of thought and inventive ability in the designer or builder. To appreciate mental work of this kind we must bring a mind developed along the same or similar lines. It has well been said that before one can take away anything from a book he must bring something to it. It takes mentality to recognize and appreciate mentality or the work of mentality. The study of scientific subjects is a source of great pleasure to those who are inclined to such pursuits. To the scientific mind the study of the latest work on the favorite branch gives a joy which nothing else is capable of arousing. To the philosopher the works of other philosophers of the same school give intense satisfaction. It is claimed that the sense of humor and wit is an intellectual emotion, for it depends upon the detection of the ludicrous features of a happening. Certain psychologists have held that the distinctive element of humor is the feeling attendant upon the perception of incongruity; while that of wit is the feeling of superiority on the part of the witty person, and the corresponding chagrin of the object of his wit. It would seem, however, that the appreciation of wit must depend upon the intellectual perception of cleverness of expression and the pleasure resulting from the discovery thereof, and that the feeling of humor is aroused principally by reason of the incongruous element; the feeling of self-satisfaction as contrasted with the discomfiture of the other person belongs to the more selfish emotions. An authority says: "Humor is a mental faculty which tends to discover incongruous resemblances between things which essentially differ, or essential differences between things put forth as the same, the result being internal mirth or an outburst of laughter. Wit does so likewise, but the two are different. Humor has deep human sympathy, and loves men while raising a laugh against their weaknesses. Wit is deficient in sympathy, and there is often a sting in its ridicule. Somewhat contemptuous of mankind, it has not the patience to study them thoroughly, but must content itself with noting superficial resemblances or differences. Humor is patient and keenly observant, and penetrates beneath the surface; while, therefore, the sallies of wit are often one-sided and unfair, those of humor are, as a rule, just and wise."