There is no greater sorrow then to recall our times of joy in wretchedness. ― Dante Alighieri, Inferno (The Divine Comedy). (Modern Library, December 9, 2003) Originally 1320.
Softer than rainfall at twilight, Bringing the fields benediction And the hills quiet and greyness, Are my long thoughts of you. — Sappho, Selections: One Hundred Lyrics. Trans. Bliss Carman (1907)
The heart, if it could think it would stop beating. — Fernando Pessoa, The Book of Disquiet. (Penguin Modern Classics, 2002)