How far the manuscript of the "Canterbury Tales" had already progressed is uncertain; the "Prologue" to the "Legend of Good Women" mentions the "Love of Palamon and Arcite"--an earlier version of the "Knight's Tale," if not identical with it--and a "Life of Saint Cecilia" which is preserved, apparently without alteration, in the "Second Nun's Tale." Possibly other stories had been already added to these, and the "Prologue" written--but this is more than can be asserted with safety. Who shall say whether, if the stream of prosperity had continued to flow, on which the bark of Chaucer's fortunes had for some years been borne along, he might not have found leisure and impulse sufficient for completing his masterpiece, or at all events for advancing it near to completion? That his powers declined with his years is a conjecture which it would be difficult to support by satisfactory evidence; though it seems natural enough to assume that he wrote the best of his "Canterbury Tales" in his best days. Troubled times we know to have been in store for him. The reverse in his fortunes may perhaps fail to call forth in us the sympathy which we feel for Milton in his old age doing battle against a Philistine reaction, or for Spenser overwhelmed with calamities at the end of a life full of bitter disappointment. But at least we may look upon it with the respectful pity which we entertain for Ben Jonson groaning in the midst of his literary honours under that dura rerum necessitas, which is rarely more a matter of indifference to poets than it is to other men.