Night is a sculpture on the tomb of Giuliano de Medici, the Duke of Urbino, in the city of Florence. Michelangelo carved it between 1526 and 1531 and composed these lines to place in the mouth of this personification of the night:
Precious is sleep, better to be of stone,
while the oppression and the shame still last;
not seeing and not hearing, I am blest;
so do not wake me, hush! keep your voice down
In a 2000 letter to the New England Journal of Medicine, James J. Stark and Jonathan Katz Nelson argue that the model that Michelanglo used likely had advanced breast cancer. Her left breast has lumps indicative of a tumor in the nipple or the lymphatics beneath the nipple. As these shapes are not present in the other female breasts that Michelanglo composed, it's likely that this shape reflects, tragically, the model herself.
-via TYWKIWDBI