It is, we think, impossible to suppose that these considerations have not weighed materially upon the minds of eminent men in our own day, when biographies have become so much more numerous, and when they are so much more closely criticised than formerly. And in comparing the letters written in the early part of this century--such as those from which we have given a few characteristic quotations--with those which have been recently published, we have to take account of these things, among other changes of the social and literary environment. Undoubtedly the comparison is to the advantage of the earlier writings; they seem infinitely more amusing, more genuine, more biographical, more redolent of the manners and complexion of the time. There is in them a flavour of heartiness and irresponsibility which may partly be attributed to the fact that the best writers were poets, whose genius flowered as early as their manhood, and most of whom died young; so that their letters are fresh, audacious, and untempered by the chilly caution of middle or declining age. Their spirits were high, they were ardent in the pursuit of ideals; they were defying society, they either had no family or were at feud with it, and they gave not a thought to the solemn verdict of posterity. For correspondents who were brimming over with humour, imagination, and enthusiasm, no situation could be more thoroughly favourable to sparkling improvisation; and accordingly they have left us letters which will be a joy for ever.