Omar Khayyam (313) “wine loosens even cast-iron shackles”

Wine-bibbing makes people 
       less full of themselves,
and wine loosens even
    cast-iron  shackles.
If satan had only 
    tippled every night,
he would not have been cast down 
         from heaven for his pride.

Translated by Juan Cole
from Omar Khayyam’s Rubaiyat, [pdf] Whinfield 313/ Arberry 1949