Needless promotion does more harm than good

(illustrated by kingfisher; Stupid farmer pulls seedlings of the crops.)
historical event in china "Mencius"

Needless promotion does more harm than good.
(助長）
Once upon a time in old china, there were a farmer and his son.
The farmer worried about the growth of seedlings. Because seedlings of the corps were in bad condition. He said to his son" I wish seedlings would grow well."
Farmer went to the farm,then pulled seedlings one after another. He thought this was what to do.
After all, the son was disappointed by his stupid father.
Depending on this event, old Chinese was saying"Needless promotion ,on the contrary,aggravates evils."