Quintus Horatius Flaccus
The Fourth Book Of The Odes Of Horace (Chap. 10)
Ode X
To Ligurinus
O cruel still, and potent in the endowments of beauty, when an unexpected plume shall come upon your vanity, and those locks, which now wanton on your shoulders, shall fall off, and that color, which is now preferable to the blossom of the damask rose, changed, O Ligurinus, shall turn into a wrinkled face; [then] will you say (as often as you see yourself, [quite] another person in the looking glass), Alas! why was not my present inclination the same, when I was young? Or why do not my cheeks return, unimpaired, to these my present sentiments?