Assuming that beauty is the distribution of light in the fashion most congenial to one's retina, a tear is an acknowledgment of the retina's, as well as the tear's, failure to retain beauty. On the whole, love comes with the speed of light; separation, with that of sound. It is the deterioration of the greater speed to the lesser that moistens one's eye. Because one is finite, a departure from this place always feel final; leaving it behind is leaving it forever. For leaving is banishment of the eye to the provinces of the other senses; at best, to the crevices and crevasses of the brain. For the eye identifies itself not with the body it belongs to but with the object of its attention. And to the eye, for purely optical reasons, departure is not the body leaving the city but the city abandoning the pupil. Likewise, disappearance of the beloved, especially a gradual one, causes grief no matter who, and for what peripatetic reason, is actually in motion. As the world goes, this city is the eye's beloved. After it, everything is a letdown. A tear is the anticipation of the eye's future.” Joseph Brodsky, Acqua Alta
