The Ass and His Driver

By Aesop

AN ASS, being driven along a high road, suddenly started off, and bolted to the brink of a deep precipice. While he was in the act of throwing himself over, his owner, seizing him by the tail, endeavored to pull him back. The Ass persisting in his effort, the man let him go and said: Conquer, but conquer to your cost.

Moral:
The perverse generally come to harm.