The opposite of laughing and joking is _seriousness_. Accordingly it consists in the consciousness of the perfect agreement and congruity of the conception, or thought, with what is perceived, or the reality. The serious man is convinced that he thinks the things as they are, and that they are as he thinks them. This is just why the transition from profound seriousness to laughter is so easy, and can be effected by trifles. For the more perfect that agreement assumed by seriousness may seem to be, the more easily is it destroyed by the unexpected discovery of even a slight incongruity. Therefore the more a man is capable of entire seriousness, the more heartily can he laugh. Men whose laughter is always affected and forced are intellectually and morally of little worth; and in general the way of laughing, and, on the other hand, the occasions of it, are very characteristic of the person. That the relations of the sexes afford the easiest materials for jokes always ready to hand and within the reach of the weakest wit, as is proved by the abundance of obscene jests, could not be if it were not that the deepest seriousness lies at their foundation. That the laughter of others at what we do or say seriously offends us so keenly depends on the fact that it asserts that there is a great incongruity between our conceptions and the objective realities. For the same reason, the predicate “ludicrous” or “absurd” is insulting. The laugh of scorn announces with triumph to the baffled adversary how incongruous were the conceptions he cherished with the reality which is now revealing itself to him. Our own bitter laughter at the fearful disclosure of the truth through which our firmly cherished expectations are proved to be delusive is the active expression of the discovery now made of the incongruity between the thoughts which, in our foolish confidence in man or fate, we entertained, and the truth which is now unveiled.