The Viper and the File Lyrics

A Viper, entering the workshop of a smith, sought from the tools the means of satisfying his hunger. He more particularly addressed himself to a File, and asked of him the favor of a meal. 

The File replied: "You must indeed be a simple-minded fellow if you expect to get anything from me, who am accustomed to take from every one, and never to give anything in return." 

Moral : The covetous are poor givers.