Giovanni Boccaccio: The Decameron

As often, most gracious ladies, as I bethink me, how compassionate you are by nature one and all, I do not disguise from myself that the present work must seem to you to have but a heavy and distressful prelude, in that it bears upon its very front what must needs revive the sorrowful memory of the late mortal pestilence, the course whereof was grievous not merely to eyewitnesses but to all who in any other wise had cognisance of it. But I would have you know, that you need not therefore be fearful to read further, as if your reading were ever to be accompanied by sighs and tears. This horrid beginning will be to you even such as to wayfarers is a steep and rugged mountain, beyond which stretches a plain most fair and delectable, which the toil of the ascent and descent does but serve to render more agreeable to them; for, as the last degree of joy brings with it sorrow, so misery has ever its sequel of happiness.