The birds were at war with the beasts, and the conquerors were defeated in their turn; but the bat, fearing the doubtful issue of the strife, always betook himself to those whom he saw victorious. When they had returned to their former state of peace, the fraud was apparent to both sides; convicted therefore of a crime so disgraceful, and flying from the light, he thenceforth hid himself in deep darkness, always flying alone by night. 
Whoever offers himself for sale to both sides, will live a life of disgrace, hateful to them both. 