《世说新语·尤悔》
简文帝看见田里的稻子，不认识，问这事什么草，身边的随从回答是稻子。
简文见田稻不识，问是何草？左右答是稻。
Emperor Jianwen saw the rice in the field, not knowing what it was, and asked what kind of grass it was. The entourage around him replied that it was rice.