According to my explanation given in the first volume, the source of the ludicrous is always the paradoxical, and therefore unexpected, subsumption of an object under a conception which in other respects is different from it, and accordingly the phenomenon of laughter always signifies the sudden apprehension of an incongruity between such a conception and the real object thought under it, thus between the abstract and the concrete object of perception. The greater and more unexpected, in the apprehension of the laughter, this incongruity is, the more violent will be his laughter. Therefore in everything that excites laughter it must always be possible to show a conception and a particular, that is, a thing or event, which certainly can be subsumed under that conception, and therefore thought through it, yet in another and more predominating aspect does not belong to it at all, but is strikingly different from everything else that is thought through that conception. If, as often occurs, especially in witticisms, instead of such a real object of perception, the conception of a subordinate species is brought under the higher conception of the genus, it will yet excite laughter only through the fact that the imagination realises it, _i.e._, makes a perceptible representative stand for it, and thus the conflict between what is thought and what is perceived takes place. Indeed if we wish to understand this perfectly explicitly, it is possible to trace everything ludicrous to a syllogism in the first figure, with an undisputed _major_ and an unexpected _minor_, which to a certain extent is only sophistically valid, in consequence of which connection the conclusion partakes of the quality of the ludicrous. In the first volume I regarded it as superfluous to illustrate this theory by examples, for every one can do this for himself by a little reflection upon cases of the ludicrous which he remembers. Yet, in order to come to the assistance of the mental inertness of those readers who prefer always to remain in a passive condition, I will accommodate myself to them. Indeed in this third edition I wish to multiply and accumulate examples, so that it may be indisputable that here, after so many fruitless earlier attempts, the true theory of the ludicrous is given, and the problem which was proposed and also given up by Cicero is definitely solved.