Closely allied to Chaucer's liveliness and gaiety of disposition, and in part springing from them, are his keen sense of the ridiculous and the power of satire which he has at his command. His humour has many varieties, ranging from the refined and half-melancholy irony of the "House of Fame" to the ready wit of the sagacious uncle of Cressid, the burlesque fun of the inimitable "Nun's Priest's Tale," and the very gross salt of the "Reeve," the "Miller," and one or two others. The springs of humour often capriciously refuse to allow themselves to be discovered; nor is the satire of which the direct intention is transparent invariably the most effective species of satire. Concerning, however, Chaucer's use of the power which he in so large a measure possessed, viz. that of covering with ridicule the palpable vices or weaknesses of the classes or kinds of men represented by some of his character-types, one assertion may be made with tolerable safety. Whatever may have been the first stimulus and the ultimate scope of the wit and humour which he here expended, they are NOT to be explained as moral indignation in disguise. And in truth Chaucer's merriment flows spontaneously from a source very near the surface; he is so extremely diverting, because he is so extremely diverted himself. Herein, too, lies the harmlessness of Chaucer's fun. Its harmlessness, to wit, for those who are able to read him in something like the spirit in which he wrote--never a very easy achievement with regard to any author, and one which the beginner and the young had better be advised to abstain from attempting with Chaucer in the overflow of his more or less unrestrained moods. At all events, the excuse of gaiety of heart--the plea of that vieil esprit Gaulois which is so often, and very rarely without need, invoked in an exculpatory capacity by modern French criticism--is the best defence ever made for Chaucer's laughable irregularities, either by his apologists or by himself. "Men should not," he says, and says very truly, "make earnest of game." But when he audaciously defends himself against the charge of impropriety by declaring that he must tell stories IN CHARACTER, and coolly requests any person who may find anything in one of his tales objectionable to turn to another:-- For he shall find enough, both great and small Of storial thing that toucheth gentleness, Likewise morality and holiness; Blame ye not me, if ye should choose amiss--