Story of the foolish servant.
Project Gutenberg EPUB3 edition
Somadeva Bhatta, active 11th century and Tawney, C. H. (Charles Henry)
For instance a certain rich man had a foolish servant. He, while shampooing him, in his extreme folly gave him a slap on his body, (for he fancied in his conceit that he thoroughly understood the business while he really knew nothing about it,) and so broke his skin. Then he was dismissed by that master and sank into utter despair.
“The fact is a man who, while ignorant, thinks himself wise, and rushes impetuously at any business, is ruined; hear another story in proof of it.”